Oil Change Guide

The most important maintenance task for your engine

Time

30-45 min

Cost (DIY)

$30-60

Interval

5K-7.5K miles

Why Oil Changes Matter

Lubrication: Oil keeps engine parts moving smoothly and prevents metal-on-metal contact
Cooling: Oil carries heat away from hot engine components
Cleaning: Oil suspends dirt and debris, preventing sludge buildup
Fuel Economy: Fresh oil reduces friction, improving MPG by 1-2%

Run for 2-3 minutes. Warm oil drains faster and carries more contaminants.

Under the engine, usually at the bottom of the oil pan. Position your drain pan underneath.

Use a socket wrench. Be careful — oil may be hot! Let it drain completely (5-10 minutes).

Use an oil filter wrench. Some oil will spill — have rags ready.

Rub new oil on the rubber gasket. Screw on by hand until snug, then 1/4 turn more.

Clean the plug, check the washer, and tighten to spec (usually 25-35 ft-lbs).

Use a funnel. Check your manual for capacity and oil type. Start with 1 quart less than full.

Start engine, let it run 30 seconds, turn off. Wait 2 minutes, check dipstick. Add oil if needed.

Conventional

$: Cheapest option. Good for older cars with high mileage. Change every 3,000-5,000 miles.

Synthetic Blend

$$: Mix of conventional and synthetic. Good balance of price and performance. 5,000-7,500 miles.

Full Synthetic

$$$: Best protection and performance. Required for many modern cars. 7,500-15,000 miles.

High Mileage

$$: For cars over 75,000 miles. Contains seal conditioners to reduce leaks. 5,000-7,500 miles.

Dark, dirty oil on the dipstick

Oil change light or maintenance reminder on

Engine running louder than usual

Exhaust smoke (blue = burning oil)

Oil smell inside the cabin

It has been 5,000+ miles since last change