oil viscosity Hyundai Coupe 2008 Owner's Manual

2 DRIVING YOUR HYUNDAI
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C160B01A-GAT Snowy or Icy Conditions To drive your vehicle in deep snow, it may be necessary to use snow tires orto install tire chains on your tires. If snow tires are needed, it is necessary to select tires equivalent in size andtype to the original equipment tires. Failure to do so may adversely affect the safety and handling of your car.Speeding, rapid acceleration, sudden brake applications, and sharp turns are potentially very hazardous prac-tices. During deceleration, use engine braking to the fullest extent. Sudden brake applications on snowy or icyroads may cause skids to occur. You need to keep sufficient distance be- tween the vehicle in front and yourvehicle. Also, apply the brake gently. It should be noted that installing tire chains on the tire will provide a greaterdriving force, but will not prevent side skids. NOTE: Tire chains are not legal in all prov- inces. Check province laws before fitting tire chains. C160C01A-AAT Use High Quality Ethylene Gly- col Coolant Your Hyundai is delivered with high quality ethylene glycol coolant in thecooling system. It is the only type of coolant that should be used because it helps prevent corrosion in the coolingsystem, lubricates the water pump and prevents freezing. Be sure to replace or replenish your coolant in accor-dance with the maintenance schedule in Section 5. Before winter, have your coolant tested to assure that its freez-ing point is sufficient for the tempera- tures anticipated during the winter.
C160D01A-AAT Check Battery and Cables Winter puts additional burdens on the battery system. Visually inspect thebattery and cables as described in Section 6. The level of charge in your battery can be checkedby your Hyundai dealer or a service station. C160E01A-AAT Change to "Winter Weight" Oil if Necessary In some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. SeeSection 9 for recommendations. If you aren't sure what weight oil you should use, consult your Hyundai dealer.

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DO-IT-YOURSELF MAINTENANCE
9
o The engine oil consumption is strongly effected by the viscosity and quality of oil, engine rpm and driving condition etc. More engine oil may be consumed under severedriving conditions such as high speeds, frequent acceleration and deceleration, compared to normaldriving condition. G050B01A-AAT Recommended Engine Coolant Use a high quality ethylene-glycol coolant in a 50/50 mix with water. The engine coolant should be compatible with aluminum engine parts. Addi-tional corrosion inhibitors or additives should not be used. The cooling sys- tem must be maintained with the cor-rect concentration and type of engine coolant to prevent freezing and corro- sion. Never allow the concentration ofantifreeze to exceed the 60% level or go below the 35% level, or damage to the cooling system may result. Forproper concentration when adding or replacing the engine coolant, refer to the following table.
Water
65% 60%50%40%
35%40%50%60%
Ambient
temperature °C ( °F)-15 (5)
-25 (-13) -35 (-31)-45 (-49) Engine coolant concentration
Antifreezesolution
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CHECKING AND CHANGING THE ENGINE COOLANT
G050A02A-AAT
WARNING:
Do not remove the radiator cap when the engine is hot. When the engineis hot, the engine coolant is under pressure and may erupt through the opening if the cap is removed. Youcould be seriously burned if you do not observe this precaution. Do not remove the radiator cap until theradiator is cool to the touch. NOTE: It is recommended that the engine
coolant should be changed by an authorized Hyundai dealer.

6OWNER MAINTENANCE
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NOTE:
o SAE 5W-20 (5W-30), ILSAC GF-3 engine oil is preferred regardless of regional option and engine variation.
o If SAE 5W-20, ILSAC GF-3 engine oil is not available, secondaryrecommended engine oil for cor- responding temperature rangecan be used.ENGINE OIL
SG030A1-E The correct engine oil level is of para- mount importance. An excessively high or low oil level may result inirreparable damage being sustained by the engine. The engine oil level must be checked on a daily basis orwhenever the vehicle is refuelled, whichever occurs sooner. In addition, it is imperative that only an approved grade and specification of oil is used to avoid the possibility of serious engine damage and prema-ture wear. The use of "budget price" oil is a false economy that must be avoided if the maximum reliability anduseful life is to be obtained from the vehicle. G030B02O-EAT
Recommended Oil
The engine oil quality should meet the
following classification.
API SJ, SL or ABOVE, ILSAC GF-3 or ABOVE The oil viscosity should be selected
according to the operating environ- ment of the engine by means of thetable shown above. The engine oil recommendations are complete in themselves and the use of additivesis neither required nor recommended. The use of engine oil additives may result in invalidation of the vehiclewarranty.
G030B01JM

6OWNER MAINTENANCE
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o The engine oil consumption isstrongly effected by the viscosity and quality of oil, engine rpm and driving condition etc. More engine oil may be consumed under severe driving conditions such as high speeds, frequent acceleration and deceleration,compared to normal driving.
G350A01A-EAT
ENGINE OIL CONSUMPTION Function of engine oil
Engine oil has the primary function of
lubricating and cooling the inside of the engine. Engine oil consumption
It is normal that an engine should
consume some engine oil in the course of normal driving. The cause of oil consumption in a normal engine are asfollows;
o Engine oil is used to lubricate pis- tons, piston rings and cylinders. A thin film of oil is left on the cylinder wall when a piston moves downwards in the cylinder. High negative pressure generated dur-ing engine operation sucks some of the oil into the combustion cham- ber.This oil with some oil of the cylin-der wall is burned by the high tem-perature combustion gases during the combustion process.
!WARNING:
Be very careful not to touch the radiator hose when adding the en- gine oil as it may be hot enough to burn you.