DannyLeininger wrote:
Tom, having you here is amazing! Thank you. I have read all the posts so far....wow!
I recently purchased an 07 Mountain Aire 45' with an Allison 4000 with Transynd. It had been repo'd so I'm missing most documentation and have no maintenance history.
I assume the 4000 requires the first primary filter change at 5K like my last 3000 did???
You have stated a 4000 could go 100K+ miles between fluid changes provided proper filter changes and oil analysis. But, not knowing if filter changes have been done, what steps would you recommend I take? Should I go ahead and change the fluid and filters so I have a good starting point? Or just change filters?
Can you take the original Transynd to 100K+ miles? Or is this done after the first complete change?
Danny,
Since you don't know the history it's probably best to start fresh with new filters and fluid and then you've got a "baseline". Otherwise, you could change the filters, do an oil analysis, and then do a top off. I'd be happy to take a look at the oil analysis for you. Once you've drained and refilled twice with TranSynd in a 4000 Series, you're good for 300,000 miles on the fluid and then just change the filters as recommended by Allison. Note: If you have a retarder then the fluid is good for 150,000 miles since a retarder is considered "Severe Duty".
