Transmission Service
I plan on having the transmission fluid and filter changed on my Chevy D/A. Will probably take it to the dealer if I can't find a local garage to do it. Generally speaking, about how much does somet...
Forum Discussion
I have an 05' and Allison does not reccommend a flush. If you have an Allison dealer near you you can buy Transynd for alittle over $30 a gallon and a spin on filter for about $9.00. Allison has a drain plug so it's no problem to change. You don't drop the pan for the internal filter unless you are doing an overhaul. Drive for 10,000 miles and repeat and Allison considers this to be a complete switchover to synthetic. You will notice smoother shifts and lower temps. It takes alittle over two gallons for the exchange and fill the spin on before you put it on. I change my spin on every other oil change. Cheap insurance for an expensive transmission. This is just what I do. I'm not saying it's by the book, but from being on the diesel forums it is usually an accepted maintainence schedule.
