moisheh wrote:
Tom: Can you please answer a quick question. My 08 Dynasty has a 3000MH that has a factory fill of Transynd. I had the Allison shop change the filters today. Unit has 35,000 miles. After the job was done the shop foreman asked me why I did not change all the oil. I didn't think it was necessary. He said it should be done @ 4 years due to moisture????? What do you think? Thanks
Moisheh
Moisheh,
The Allison tech is repeating what he's heard which is not good information. TranSynd is very stable and will last up to 300,000 miles or more. When you change filters, just top it off with TranSynd. Do an oil analysis once a year to check for coolant leaks, water, excessive dirt, etc. The fluid itself will remain stable, but you should check it once a year for contaminants. Water contamination is rare since most water boils off during operation. The oil analysis will measure water content and tell you whether or not you have excessive moisture (water) in the fluid. Typically, you won't have excessive water. It will typically show less than 0.1% water and that's acceptable.
Hope this helps !!!!
