they say change the oil every 3000 miles, this seems to satisfy most service recommendations for city driving.
when I was on the road driving 30-35,000 miles per year, I changed oil every 7500 miles, never any motor problems.
when you drive mostly in the city, and occasionally on the hiway, 3 -
5000 mile oil changes seems about right.look at the oil - if it seems black, gooey, thick - before due time, it's time for a change, and probably previous change times were neglected.
for mostly city driving I have done pretty well with 6 months, or 3000 mile for time / mileage limits on oil changes.
in addition to oil changes, plugs, sensor warnings, injector service, and etc. should me monitored, and serviced when needed.
tires: below minimum air pressure in the u s - accounts for 4 million gallons of wasted gasoline per day. think about it, that's a lot of gas / moola down the drain.
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