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Even the motor oil, you choose can make a difference, your gas mileage can improve by using the manufacturer's recommended grade of oil.

For example using 10W-30 motor oil in an engine designed to use 5W-30 can lower your gas mileage - by 1-2 per cent.

Look for the new energy conserving EC grade of motor oils that contain friction reducing additives.

Fill fuel tank during cooler evening hours to cut down on evaporation. Avoid spilling fuel and don't top off the tank.

2007-04-03 08:34:05 · answer #1 · answered by jsn_ayers 4 · 0 0

The one listed in the owner's manual. Who would know better than the designer?

2007-03-30 13:01:15 · answer #2 · answered by Ralfcoder 7 · 0 0

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