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" Senior Editor Mike Allen answers readers&amp;#039; car questions. Q: Now that we have switched from MTBE to 10% ethanol in our gasoline here in Massachusetts, do I still need to use &amp;quot;drygas&amp;quot; additive to remove water condensate in the winter? Ethanol is hydrophyllic, but will it eliminate the water in the gas tank and lines? PETER POLLACK, Ashland, MA A: No, you do not need to use drygass additive. The ethanol will eliminate the water in the gas tank and lines. Q: Here&amp;#039;s a suggestion. Put it in your oil tank. That&amp;#039;s right your old motor oil. I read it as a tip over 30 years ago in one of those now defunct magazines. I have been doing it for over 25 years with nada a problem. I would caution that all 6 of my vehicles get the oil changed at 3000 mile intervals without fail. A: I wouldn&amp;#039;t recommend it. There&amp;#039;s too much dirt, water and acids in used motor oil. It can clog your burner, rust out your oil tank and will almost certainly burn very smoky. they make special furnaces for this, and they&amp;#039;re not cheap. Q: I&amp;#039;d like to install turn signals on my 1990 Club golf cart. Is there a 12-volt system available? Would it be costly? FRED MARTIN A: I&amp;#039;m not aware of any kits. You&amp;#039;ll have to make up the harness and source the parts yourself. The parts should run $50-100, and it would take a decent mechanic an afternoon to install. There won&amp;#039;t be any self-cancelling function, though. Q: I read an article in an old issue of your magazine on how to clean up badly hazed head light lens on my &amp;#039;93 Dodge Intrepid. However I have misplaced that issue of PM. Hope you can point me in the right direction. ANDREW DESPOSITO A: You are looking for the Headlight Lens Restoration Kit from Permatex. Q: I have a 2000 Pontiac Grand Am and need to replace the serpentine belt. How do I get it around the motor mount? GERALD T. BAKER A: You have to remove the motor mount. Q: I have a Chevrolet Avio. The check engine light came on so I took it to the dealer. It turns out a creature chewed the wire. I had it repaired, but about five weeks later it happened again! Do you have any suggestions on how we can discourage this?  A: Tobasco sauce will work if he&amp;#039;s chewing the same place. And I&amp;#039;ve had good luck with mothballs. But there&amp;#039;s no substitute for a big, hungry barnyard cat. Q: I would like to try a convertible top dressing (with black dye in it) on the vinyl roof of my 35-year-old Malibu. Can you tell me what company makes this product and who sells it? And, do you approve of this product for my Malibu? A: Try Forever Black-Top, there are others, but this one is pretty good. Q: I have just purchased a new 2006 Lexus IS250 AWD. The manual and the inside of the gas fill door indicate that I should use 93 octane gasoline. The Lexus salesman assured me that 87 octane would be fine. With gas prices the way they are, I&amp;#039;d like to use the 87, but want to make sure that it won&amp;#039;t cause any problems with my new car. What do you think? ANDREA FRANK, Framingham, MA A: The lower octane fuel won&amp;#039;t damage your car, because it has a knock sensor that retards the timing when octane is too low and the engine starts to detonate. (Not all cars have this.)  However, your mileage will suffer because of the retarded ignition, which may well negate the reduced cost of the lower-grade fuel. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/cars/how-to/a997/4202033/>