I'm sure the answer is yes but just had the tranny rebuilt and was wondering if starting with synthetic(Redline MT-90) is ok? I'm sure it's not like a engine but want to be sure... It's a little late in the game for a royal f*** up
Fresh rebuilt R154...Synthetic?
- Thread starter dumbo
- Start date
When I had my trans rebuilt by Marlin Crawler the instructions said to use standard oil for the first 10k miles. Just my experience.
I did mine and Redlined MT90 is the best for our gearboxes. Why, JDub explained it on a thread and that's enough.
IBoughtASupra;1749546 said:
On a fresh rebuild?? I'll have to look up that article, or if you can point me in the right direction that would be awesome.
It is simple. On a fresh rebuild, you want all the parts to rub against each other to wear in properly.
It is not recommended to use synthetic on a new engine build and it is the same for a gearbox.
You don't want all the extra additives because it hampers the break-in process. Redline MT-90 meets the standards for manual gearboxes.
Link:
http://www.supramania.com/forums/sh...ith-LSD-additive-in-R154-cause-harder-shifts&
It is not recommended to use synthetic on a new engine build and it is the same for a gearbox.
You don't want all the extra additives because it hampers the break-in process. Redline MT-90 meets the standards for manual gearboxes.
Link:
http://www.supramania.com/forums/sh...ith-LSD-additive-in-R154-cause-harder-shifts&
Normal cheap gear oil as you'll be replacing it very soon. The important part is to heat cycle and wear both sides of the gears (just like breaking in a diff).
Though, this depends a hell of a lot on what was actually done on the rebuild. If none of the gears were replaced, there's nothing to wear in...
Though, this depends a hell of a lot on what was actually done on the rebuild. If none of the gears were replaced, there's nothing to wear in...
Poodles;1749750 said:
Good call, it will be changed after a short while. The gears were apparently good and reused, as were the shafts. I bought the DM rebuild kit, so new bearings, seals and synchroes. Also used MC front bearing retainer and 1st-2nd gear shift fork. Thanks for the advice guys, after a few thousand kms of dino oil I'll switch to MT-90.