oil additives Hyundai Sonata 2020 Owner's Manual

Maintenance8-8
Normal Maintenance Schedule (Smartstream G1.6 T-GDi)
MAINTENANCE INTERVALS
MAINTENANCE
ITEM Months 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Miles×1,000 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 Km×1,000 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
Drive belts
*1
At first, inspect at 60,000 miles or 72 months.
Thereafter, inspect every 12,000 miles or 24 months
Engine oil and engine oil filter R R R R R R R R R RRRRR R
Fuel additives
*2
Add fuel additives every 6,000 miles or 12 months
Air cleaner filter I I I R I I I R I I I R I I I
Spark plugs Replace every 42,000 miles
Valve clearance
*3
Inspect every 60,000 miles or 72 months
Rotate tires Rotate tires every 6,000 miles
Climate control air filter Replace every 12 months
Vacuum hose I I I I I I I I I IIIII I
Engine coolant At first, replace at 120,000 miles or 120 months.
Thereafter, replace every 30,000 miles or 24 months
R: Replace or change.
I : Inspect and if necessary, adjust, correct, clean or replace.*1 :
The drive belt should be replaced when cracks occur or tension is reduced excessively.
*2 :
If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended. Additives are available from your
authorized HYUNDAI dealer along with information on how to use them. Do not mix other additives.
*3 :
Inspect for excessive valve noise and/or engine vibration and adjust if necessary. Have an authorized HYUNDAI dealer perform
the operation.

Maintenance8-12
Normal Maintenance Schedule (Smartstream G2.5 GDi)
MAINTENANCE INTERVALS
MAINTENANCE
ITEM Months 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Miles×1,000 7.5 15 22.5 30 37.5 45 52.5 60 67.5 75 82.5 90 97.5 105 112.5 Km×1,000 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180
Drive belts
*1
At first, inspect at 60,000 miles or 72 months.
Thereafter, inspect every 15,000 miles or 24 months
Engine oil and engine oil filter R R R R R R R R R RRRRR R
Fuel additives
*2
Add fuel additives every 7,500 miles or 12 months
Air cleaner filter I I I R I I I R I I I R I I I
Spark plugs Replace every 97,500 miles
Rotate tires Rotate tires every 7,500 miles
Climate control air filter Replace every 12 months
Vacuum hose I I I I I I I I I IIIII I
Engine coolant At first, replace at 120,000 miles or 120 months.
Thereafter, replace every 30,000 miles or 24 months
R: Replace or change.
I : Inspect and if necessary, adjust, correct, clean or replace.*1 :
The drive belt should be replaced when cracks occur or tension is reduced excessively.
*2 :
If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended. Additives are available from your
authorized HYUNDAI dealer along with information on how to use them. Do not mix other additives.