Q The owner's manual for my Honda C...

Q The owner's manual for my Honda Civic says to use 5w20 oil, nevertheless a quick oil change facility not long ago used 5w30 oil instead. Should I be worried about that? --MC Chicago

A. Probably not, nevertheless don't let it happen again. Automakers have become extremely specific about oil weights, many times in the interests of better material for burning economy. For instance, lighter weight oil similar as 5w20 reduces engine friction and enhances firing economy. A reliable oil change facility should use the correct oil.

Q for what reason long should I wait for tires to a little cold down to get a valid tire hurry reading when the tires are heated after, say, a five- mile local drive when temperatures are in the 80s? --A.R., Chicago area

A. Wait an hour or in this way until they are cool to the touch, or at least at chamber temperature. It's always best to check tire crushings after a car or exchange has been sitting overnight.

Q My 1993 Volvo 940 station wagon idles roughly for about three minutes after starting it when it has been sitting overnight in or disclosed of my garage. The idling before long returns to normal. -- ed Aurora

A. Your Volvo has a "cold idle" question that might require a tune- up to fix.

Q Oil send forths out of the dip stick in my high-mileage 1993 Jeep Wrangler when it's moving 30-40 mph I don't know where to start looking for the vexed question in the Jeep, which has a usually reliable mechanical combustible matter pump. The Jeep's oil regularly is changed each 3,000 miles. --C.D., Chicago

A. A spring-loaded relief valve in the cross-examine is probably sticking and thus causing an oil constraining force buildup that leads to the oil shooting without says Elmwood Park's Caira Automotive. The question is serious and should be fixed as before long as possible.

Q When it rains, the service engine light be deriveds on in my 1999 Pontiac Grand Am and the car hesitates when I accelerate. The light goe opposite when the weather is thirsty --A.K., Chicago area

A. Worn ignition wires might be getting wet when it rains. That will cause spark stoppers to misfire and the light to be due [i]or[/i] owing on. The misfiring also will cause the car's computer to store a annoy code, which a mechanic can use to pinpoint the vexed question

Q A light proceeds on in my 2001 Chevrolet Monte Carlo that indicates a soft engine coolant level. But the flush is correct, and the light goe opposite to when the car warms up --GH Oak Forest

A. You may have a malfunctioning sensor or faulty wire. Electrical ingredients can be sensitive to temperatures.

Q Is it OK if the anti-lock brake light stays forward when I'm driving my 1998 Oldsmobile with 128000 miles. --MW Chicago area

A. Definitely not. There may be something inappropriate with the regular brake ingredients which work with the anti-lock classification

Got a car question? fling it to Dan Jedlicka, Chicago Sun-Times, 350 N Orleans, Chicago, 60654 or e-mail him at djedlicka@suntimes. com All literal meanings and e-mails should include your name, hometown and a way to contact you.

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