engine oil Hyundai Atos 2003 User Guide

VEHICLE MAINTENANCE REQUIREMENTS 5-5
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EXPLANATION OF SCHEDULED MAIN- TENANCE ITEMS
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o Engine oil and filter The engine oil and filter should be changed at
the intervals specified in the maintenance sched- ule. If the car is being driven in severe condi-tions, more frequent oil and filter changes arerequired.
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o Drive belts
Inspect all drive belts for evidence of cuts,
cracks, excessive wear or oil and replace ifnecessary. Drive belts should be checked pe-
riodically for proper tension and adjusted asnecessary.
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o Fuel filter
A clogged filter can limit the speed at which the
vehicle may be driven, damage the emissionsystem and cause hard starting. If an exces-sive amount of foreign matter accumulates inthe fuel tank, the filter may require replacementmore frequently.
After installing a new filter, run the engine for
several minutes, and check for leaks at theconnections. F060D01A-GAT
o Fuel lines, fuel hoses and connec-
tions
Check the fuel lines, fuel hoses and connec-
tions for leakage and damage. Replace anydamaged or leaking parts immediately. Inspect the hose routing to assure that the
hoses do not come in contact with any heatsource, sharp edges or moving component
which might cause heat damage or mechanicalwear. Inspect all hose connections, such as
clamps and couplings, to make sure they aresecure, and that no leaks are present. Hoses
should be replaced immediately if there is any
evidence of deterioration or damage.
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o Air cleaner filter
A Genuine Hyundai air cleaner filter is recom-
mended when filter is replaced.
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o Spark plugs
Make sure to install new spark plugs of the
correct heat range.
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o Timing belt Inspect all parts related to the timing belt for
damage and deformation. Replace any dam-aged parts immediately.
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o Vapor hose and fuel filler cap The vapor hose and fuel filler cap should be
inspected at those intervals specified in themaintenance schedule. Make sure that a newvapor hose or fuel filler cap is correctly re-placed.
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o Vacuum, crankcase ventilation hos-
es
Inspect the surface of hoses for evidence of
heat and/or mechanical damage. Hard and brit-tle rubber, cracking, tears, cuts, abrasions, and
excessive swelling indicate deterioration. Par-ticular attention should be paid to examinethose hose surfaces nearest to high heat sourc-es, such as the exhaust manifold. F060N01X-GAT
o Valve clearances Incorrect valve clearance will not only result in
unsteady engine operation, but will also causeexcessive noise and reduced engine perfor-
mance. Inspect valve clearance and adjust asrequired while the engine is hot.
Valve-to-rocker arm clearance Intake valves ..... 0.2 mm (0.008 in.)Exhaust valves .... 0.25 mm (0.010 in.)

VEHICLE MAINTENANCE REQUIREMENTS
5- 6 F070B01A-GAT
o Cooling System
Check the cooling system part, such as radia-
tor, coolant reservoir, hoses and connections for leakage and damage. Replace any dam-aged parts.
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o Engine coolant
The coolant should be changed at the
intervals specified in the maintenance sched-ule.
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o Manual transaxle oil Inspect the manual transaxle oil according to
the maintenance schedule. NOTE: If the oil level is low, check for possible
leaks before adding oil. Do not overfill.
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o Automatic transaxle fluid The fluid level should be in the "HOT" range of
the dipstick, after the engine and transaxle are at normal operating temperature. Check theAutomatic Transaxle Fluid level with the engine
running and the transaxle in neutral, with theparking brake properly applied. Use ESSO JWS-3314 when adding or changing fluid. F070F01A-AAT
o Brake hoses and lines
Visually check for proper installation, chafing,
cracks, deterioration and any leakage. Replaceany deteriorated or damaged parts immediate-ly. F070G01A-AAT
o Brake fluid
Check brake fluid level in the brake fluid reser- voir. The level should be between "MIN" and"MAX" marks on the side of the reservoir. Use only hydraulic brake fluid conforming to DOT 3 or DOT 4. F070H01A-AAT
o Rear brake drums/linings, parking
brake
Check the rear brake drums and linings for
scoring, burning, leaking fluid, broken parts,and excessive wear. Inspect the parking brake
system including the parking brake lever andcables. For detailed service procedures, referto the Shop Manual. F070J01A-AAT
o Brake pads, calipers and rotors
Check the pads for excessive wear, discs for
run out and wear, and calipers for fluid leakage. F070L01A-AAT
o Suspension mounting bolts
Check the suspension connections for loose-ness or damage. Retighten to the specifiedtorque.
F070K01A-AAT
o Exhaust pipe and muffler
Visually inspect the exhaust pipes, muffler andhangers for cracks, deterioration, or damage.Start the engine and listen carefully for any
exhaust gas leakage. Tighten connections orreplace parts as necessary. F070M01A-AAT
o Steering gear box, linkage & boots/
lower arm ball joint
With the vehicle stopped and engine off, check for excessive free-play in the steering wheel.Check the linkage for bends or damage. Check
the dust boots and ball joints for deterioration,
cracks, or damage. Replace any damaged parts. F070N01A-AAT
o Power steering pump, belt and
hoses
Check the power steering pump and hoses for leakage and damage. Replace any damaged orleaking parts immediately. Inspect the powersteering belt for evidence of cuts, cracks, ex-
cessive wear, oiliness and proper tension. Re-place or adjust it if necessary.

DO-IT-YOURSELF MAINTENANCE 6-1
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ENGINE COMPARTMENT (For Multiport Fuel Injection)
1. Engine oil level dipstick
2. Air cleaner
3. Engine oil filler cap
4. Brake booster
5. Brake fluid reservoir 6. Windshield washer fluid reservoir cap
7. Power steering fluid reservoir
8. Spark plug
9. Automatic transaxle fluid level dipstick
(Automatic T/A only) 10. Radiator cap
11. Battery
12. Relay box
13. Engine coolant reservoir
6. DO-IT-YOURSELF MAINTENANCE
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HNVOM113
81 011 13
12
79 3
6

DO-IT-YOURSELF MAINTENANCE
6-2 G020A01A-AAT
GENERAL CHECKS Engine Compartment The following should be checked regularly:
o Engine oil level and condition
o Transaxle fluid level and condition
o Brake fluid level
o Clutch fluid level
o Engine coolant level
o Windshield washer fluid level
o Accessory drive belt condition
o Engine coolant hose condition
o Fluid leaks (on or below components)
o Power steering fluid level
o Battery Condition G020C01X-GAT
Vehicle Interior
The following should be checked each time
when the vehicle is driven:
o Lights operation
o Windshield wipers operation
o Horn operation
o Defroster, heating system operation (and air conditioning, if installed)
o Steering operation and condition
o Mirror condition and operation
o Turn signal operation
o Accelerator pedal operation
o Brake operation, including parking brake
o Manual transaxle operation, including clutch operation
o Automatic transaxle operation, including "Park" mechanism operation
o Seat control condition and operation
o Seat belt condition and operation
o Sunvisor operation
If you notice anything that does not operate
correctly or appears to be functioning in cor-rectly, inspect it carefully and seek assistancefrom your Hyundai dealer if service is needed. G030A01A-AAT
CHECKING THE ENGINE OIL
Engine oil is essential to the performance andservice of the engine. It is suggested that youcheck the oil level at least once a week innormal use and more often if you are on a tripor driving in severe conditions. G030B01A-GAT
Recommended Oil
SSA6030B°C °F -25-13 20W-40 20W-50
15W-40 15W-50
10W-30
10W-40 10W-50
5W-40
5W-30
5W-2040 104
2068
1050
032
-15 5 -10-14
SH, SG or SG/CD (API) multi-grade and fuel efficient oil is recommended.
NOTE: SAE 5W-20 is not recommended for sus- tained high speed vehicle operation.
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Vehicle Exterior The following should be checked monthly:
o Overall appearance and condition
o Wheel condition and wheel nut torque
o Exhaust system condition
o Light condition and operation
o Windshield glass condition
o Wiper blade condition
o Paint condition and body corrosion
o Fluid leaks
o Door and hood lock condition
o Tire pressure and condition (including spare tire)
o Air filter condition

DO-IT-YOURSELF MAINTENANCE 6-3
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To Check the Oil Level G030D01A-GAT Adding Oil
AS60050A
L
F
Before checking the oil, warm up the engine to
the normal operating temperature and be sure your car is parked on level ground. Turn theengine off.
Wait a minute, then remove the dipstick, wipe it
off, fully reinsert the dipstick and withdraw itagain. Then note the highest level the oil hasreached on the dipstick. It should be betweenthe upper ("FULL") and lower ("LOW") range. If the oil level is close to or below the "L" mark,add oil until it reaches the "F" mark. To add oil:
1. Remove the oil filler cap by turning it counter-
clockwise.
2. Add oil, then check the level again. Do not overfill.
3. Replace the cap by turning it clockwise. The distance between the "F" and "L" marks is equal to about 1 liter of oil. G350A01A-GAT
ENGINE OIL CONSUMPTION Function of Engine Oil
Engine oil has the primary function of lubricat-
ing and cooling the inside of the engine. Engine oil consumption
It is normal that an engine should consume
some engine oil while normal driving. The cause of oil consumption in a normal engine are asfollows;
o Engine oil is used to lubricate pistons, piston rings and cylinders. A thin film of oil is left on the cylinder wall when a piston moves downwards in thecylinder. High negative pressure generated
during engine operation sucks some of theoil into the combustion chamber. This oil with some oil of the cylinder wall is
burned by the high temperature combustiongases during the combustion process.
o The engine oil consumption is strongly ef- fected by the viscosity and quality of oil,engine rpm and driving condition etc. Theengine oil is more consumed under severedriving conditions such as high speeds and
frequent acceleration and deceleration thannormal driving condition.
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DO-IT-YOURSELF MAINTENANCE
6-4 G040A03X-GAT
CHANGING THE OIL AND FILTER 3. Slide underneath the car and loosen the
drain plug by turning it counterclockwise with a wrench of the proper size. Be surethat a drain pan is in position to catch the oilas it drains out, then remove the drain plug.
WARNING: Be very careful when draining the engine oil as it may be hot enough to burn you!
4. When the oil has stopped draining, replace the drain plug using a new washer andretighten by turning it clockwise. 6. First, remove the vehicle number plate. Un-
screw the tapping screws (4EA) and re-move the front bumper grille.
Oil filler cap
Oil filter
Drain plug
The engine oil and filter should be changed at
those intervals specified in the maintenance schedule in Section 5. If the car is being driven
in severe conditions, more frequent oil and filter
changes are required.
The procedure for changing the oil and filter is
as follows:
1. Park the car on level ground and set the parking brake. Start the engine and let it warm up until the needle on the coolanttemperature gauge moves above the lowest
mark. Turn the engine off and place the gearselector lever in "P" (automatic transaxle) orreverse gear (manual transaxle).
2. Open the hood and remove the engine oil filler cap.
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G040A02X
SST (09263-02000)
5. Before removing the oil filter, prepare the special tool (oil filter wrench), extension bar and ratchet handle.
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SST (09263-02000)
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Extension bar
7. Using the special tool (09263-02000), re- move the oil filter through the bumper hole.

DO-IT-YOURSELF MAINTENANCE 6-5
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CHECKING AND CHANGING THE EN- GINE COOLANT
WARNING: Do not remove the radiator cap when the
engine is hot. When the engine is hot, theengine coolant is under pressure and mayerupt through the opening if the cap isremoved. You could be seriously burned ifyou do not observe this precaution. Do notremove the radiator cap until the radiator iscool to the touch.
8. Before installing the new oil filter on the engine, apply clean engine oil to the surface of the rubber gasket. Temporarily tighten the oil filter by hand.
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9. Using the special tool (09263-02000) andtorque wrench, tighten the oil filter to the specified torque. Tightening torque .............. 12-16 Nm
(120-160 kg.cm, 9-12 lb.ft)
SST (09263-02000)
G040A04X
Extension bar
NOTE:
o Be careful not to drop the engine oil on the rubber parts of the engine mounting insulator.
o You can purchase the SST from your Hyundai dealer.
o If you aren't sure how to use, consult your Hyundai dealer.
10. Refill the crankcase with the recommended engine oil. Refer to the specification in chap-ter 9 for engine oil capacity.
11. Start the engine and check to be sure no oil is leaking from the drain plug or oil filter.
12. Shut off the engine and recheck the oil level. NOTE: Always dispose of used engine oil in an
environmentally acceptable manner. It is sug- gested that it be placed in a sealed container
and taken to a service station for reclama-tion. Do not pour the oil on the ground orput it into the household trash.
WARNING: Used motor oil may cause irritation or can-
cer of the skin if left in contact with the skin for prolonged periods of time. Wash yourhands thoroughly with soap and warm wa-ter as soon as possible after handling usedoil.

DO-IT-YOURSELF MAINTENANCE 6-9
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FILLING THE WASHER RESERVOIR
The washer fluid reservoir supplies fluid to the
windshield washer system. A good quality washer fluid should be used to fill
the washer reservoir. The fluid level should be checked more frequently during bad weather orwhenever the washer system is in more fre-quent use.
The capacity of the washer reservoir is 2.5
liters (2.63 U.S. quarts).
CAUTION:
o Radiator antifreeze (engine coolant) should not be used in the washer systembecause it will damage the car's finish.
o The washer lever should not be pulled and the washer should not be operated ifthe washer reservoir is empty. This candamage the washer fluid pump.
G070A01X-GAT
CHANGING THE AIR CLEANER FIL- TER G080A02A-AAT
WINDSHIELD WIPER BLADES The wiper blades should be carefully inspected from time to time and cleaned to remove accu-mulations of road film or other debris. To cleanthe wiper blades and arms, use a clean spongeor cloth with a mild soap or detergent and water.If the wipers continue to streak or smear theglass, replace them with Genuine HyundaiReplacement Parts or their equivalent. CAUTION:
o Do not operate the wipers on dry glass. This can result in more rapid wear of the wiper blades and may scratch the glass.
o Keep the blade rubber out of contact with petroleum products such as engineoil, gasoline etc.
To change the filter, loosen the clamps (1) on
the cover. When this is done, the cover can be
lifted off, the old filter removed and the new filterput in its place. Genuine Hyundai replacement
parts are recommended.
CAUTION: Operating your vehicle without a proper air
filter in place can result in excessive engine wear.
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(1)
AS60160AG090A01X

DO-IT-YOURSELF MAINTENANCE
6-10 G110A01A-AAT
CHECKING THE TRANSAXLE FLUID (AUTOMATIC)
Transaxle fluid in the automatic transaxle should be checked at those intervals specified in thevehicle maintenance schedule in Section 5. G110B01X-AAT Recommended Fluid Your Hyundai automatic transaxle is specially designed to operate with ESSO JWS3314. Dam-age caused by a nonspecified fluid is not cov-ered by your new vehicle limited warranty. G110C01X-GAT
Transaxle Fluid Capacity The fluid capacity of the automatic transaxle is
5.2 liters (5.48 U.S. quarts). WARNING: The transaxle fluid level should be checked
when the engine is at normal operating tem-perature. This means that the engine, radia-
tor, exhaust system etc., are very hot. Exer-
cise great care not to burn yourself duringthis procedure.
G100A04X-GAT CHECKING THE TRANSAXLE OIL (MANUAL) Transaxle lubricant in the manual and transaxle should be checked at those intervals specified in the vehicle maintenance schedule in Section5. Recommended Oil Use only HYUNDAI GENUINE PARTS MTF 75W/90 (API GL-4) in the manual transaxle. Manual Transaxle Oil Capacity The oil capacity of the manual transaxle is 2.45 liters (2.58 U.S. quarts). WARNING: It is always better to check the transaxle oil level when the engine is cool or cold. If theengine is hot, you should exercise greatcaution to avoid burning yourself on hotengine or exhaust parts. G100B01A-AAT
To check the Manual Transaxle Fluid Level
SSA6100B
Park the car on level ground with the engine off.
1. Using a wrench of the correct size, loosen the oil filler plug by turning it counterclock- wise and remove it with your fingers.
2. Use your finger or suitable tool to feel inside the hole. The oil level should be at its bottomedge. If it is not, check for leaks beforeadding oil. To refill the transaxle or bring theoil level up, add oil slowly until it reaches theproper level. Do not overfill.
3. Replace the plug and washer, screw it in with your fingers and then tighten securelywith the wrench.
G100A01X
Filler plug
Drain plug

DO-IT-YOURSELF MAINTENANCE
6-16
G230A03A-GAT
POWER STEERING FLUID LEVEL
The power steering fluid level should be checked
regularly.
To check the power steering fluid level, be sure
the ignition is "OFF", then check to make cer- tain that the power steering fluid level is be-tween the "MAX" and "MIN" level markings onthe fluid reservoir.
NOTE: Grinding noise from the power steering
pump may be heard immediately after the engine is started in extremely cold condi-
tions (below -20°C). If the noise stops dur-ing warm up, there is no abnormal functionin the system. This is due to a power steer-ing fluid characteristic in extremely coldconditions.
G230A01X
The fluid in the battery contains a strong solu-
tion of sulfuric acid, which is poisonous and highly corrosive. Be careful not to spill it onyourself or the car. If you do spill battery fluid onyourself, immediately do the following:
o If battery fluid is on your skin, flush the affected areas with water for at least 15 minutes and then seek medical assistance.
o If battery fluid is in your eyes, rinse out your eyes with water and get medical assistanceas soon as possible. While you are beingdriven to get medical assistance, continueto rinse your eyes by using a sponge or softcloth saturated with water.
o If you swallow battery fluid, drink a large quantity of water or milk followed by milk ofmagnesia, eat a raw egg or drink vegetableoil. Get medical assistance as soon aspossible.
While batteries are being charged (either by abattery charger or by the vehicle's alternator),they produce explosive gases. Always observethese warnings to prevent injuries from occur-ring:
o Charge batteries only in a well ventilated area.
o Do not permit flames, sparks or smoking in the area.
o Keep children away from the area. G210B01A-AAT
Checking the Battery
Keep the battery clean. Any evidence of corro-
sion around the battery posts or terminals should be removed using a solution of household bak-ing soda and warm water. After the batteryterminals are dry, cover them with a light coat-ing of grease.
G220A01A-AAT
CHECKING ELECTRIC COOLING
FANS
WARNING: The radiator fan is controlled by engine cool- ant temperature and may sometimes operateeven when the engine is not running. Use extreme caution when working near the blades of the cooling fan, so that you are not injuredby a rotating fan blade. As the coolant tem-perature decreases the fan will automaticallyshut off. This is a normal condition.
G220B01A-AAT
Checking Engine Cooling Fan The engine cooling fan should come on auto-
matically if the engine coolant temperature ishigh.
G220C01A-AAT
Checking Condenser Cooling Fan The condenser cooling fan should come on
automatically whenever the air conditioning isin operation.