Is there a problem with my transmission fluid?
Q. About a year ago I had the transmission replaced on my 2005 Toyota Corolla due to a sloppy error by the local dealer (they did replace the transmission). Recently I went into a national quick lube chain and they suggested a transmission fluid flush. Since this is a manual transmission, it is hard for me to check the fluid level and condition. Is this a case of overselling or do you think there is a problem with the fluid?
A. Quick lube shops are a good way to get an oil change when you are in a hurry; although it has been my personal experience that some shops over-sell. Apparently the philosophy is to replace and change filters and fluids to set a benchmark for further maintenance intervals. As an example, once the shop changes the air filter they can recommend replacing the filter again in 15,000 miles. To me I would rather base the replacement of some, but not all, of these items on the overall condition not time or mileage. Using the air filter for example, an air filter may need frequent replacement if you drive on dusty roads or in areas of heavy pollen. On the other hand, if your driving is all highways, the air filter could last 30,000 miles or more. Replacing it once a year, just because it is a year old, may in fact be just a waste of money.
Q. When driving in my 1994 Bonneville (which I love more than my new Buick), I hear a clunking noise. The noise happens when I make a right turn and it sounds like it is coming from the rear. What do you think it could be?
A. The noise could be just about anything from a loose/broken muffler to a worn control arm bushing to a broken rear sway bar. Typically a technician will put the car on a lift and look for worn, loose or broken parts. You should get the car in for repair as soon as possible, depending on what is wrong this could be a safety issue.
Q. I was listening to your radio program while in Boston and I heard you extolling the virtues of the Jaguar XF, describing it as one of your favorite cars. I like the car but I am also considering the Mercedes CLS. If it were your money, which car would you buy?
A. In the spirit of full disclosure, I haven’t driven a CLS in a few years, but comparing it to the Jaguar, in my opinion the XF is the winner. Both cars have stylish good looks that can only be appreciated in person. The performance is similar; the interior space is about the same, and the overall build quality seems about equal. I found the ride of the XF to be more comfortable than I remember on the CLS. The CLS has the edge in an overall “bank-vault’’- like solid feel which Mercedes does better than any other manufacturer. My biggest complaint with the Jaguar is the tedious and cumbersome navigation, audio and climate control system. Although for the more than a $12,000 difference in price, I can put up with the navigation system. For other readers who want to listen, the “Car Doctor’’ program airs in Boston on WROL am 950 or online www.wrolradio.com Saturday mornings from 9-10am.
Q. I admit that I’m having a mid life crisis and considering a 2013 Corvette convertible. What do you think of this car and is it a car you can drive every day?
A. I recently drove the 427 Corvette convertible and concluded it may have been the best modern Corvette I have driven. The electronic suspension soaked up potholes with ease, the exhaust was intoxicating, fuel economy was quite good and the seats were comfortable and reasonably supportive. Keep in mind there is a new Corvette coming in the near future.
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