Ed wrote, "Other factors come into play, aside from the $75+ or so for a tranny change. Engine oil is contaminated by condensation, blow-by, and is subjected to very high temperatures. Transmissions are somewhat closed. There is less chance of contamination getting in. Under certain circumstances, like heavy towing, it can be overheated and burned, but it can usually go very long times with little degradation." ********************************************* Good point, Ed, and well taken. But it still doesn.t speak to my assertion that so many people do not service their automatic transmission anywhere near as often as often as they should (and as per recommendations) while they change their engine oil _arguably_ more often then they need to. The $75 fee for the transmission service, which is advisable, is forsaken in favour of the 2500 mile engine oil change, which is not.
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16 years ago