Just finished DOI skid plate prototype

[bjc]

Originally Posted by f5fstop

I'll make the same suggestion I made to BJC. With a full plate installed such as this, at least have the trans fluid flushed about every 25K. No a drain and filter change, but a flush. A drain and filter changes leaves most of the fluid inside the trans and the torque converter; a flush flushes out all old fluid and puts in new fresh fluid.
The other thing I would recommend is a larger trans flud cooler, such as those from BM to keep the fluid temps down.

f5 - I think I understand your advice from an automatic transmission perspective. Torque converter = heat = transmission fluid cooler. But do I have less of an issue with a 5-speed? I thought the manual transmission lacked a fluid cooler (or doesn't need one due to less heat resulting from the absence of a torque converter?). I was also under the impression that more cooling isn't always a better thing with respct to a manual transmission since temperatures that are too low result in poor fluid performance and shifting. What fluid is used in the H3's manual transmission? Is moving to a synthetic based product recommended if one is not already being used?

I could just be confused here, but I would appreciate a clarification.