Should I add anything to my newly remaned Jasper trans. (86 DeVille FWD) or just use good fluid only? I want to protect the trans from excessive wear but I don't want to add anything that might cause problems later. Anything well known and used by people on this forum as a protective additive and not a "fix-it" additive? Or best fluid recommendations?

I have been using 1 bottle of GM EOS in the engine oil (w/ Rotella 15W40) and will continue to do that for my newly remaned engine too. Seems to be a pretty wide agreement its not a bad thing to do.

Just want to make my fresh start doing everything "right" with this engine and transmission. I love this car and I don't mind spending a little extra here and there but only if there is a good chance it will help and I certainly don't want to buy anything that will HURT!

Thanks for the input...

Don't put anything in the transmission except new, clean transmission fluid. No additives required nor recommended.

I personally wouldn't put anything at all in; however, I have heard trans rebuild shops almost always put in a bottle of LubeGard (I think that's how it's spelled) with the new fluid.

An they do that just so you become a repeat customer soon? :D

I don't think you can buy miracles in a bottle - keep your tranny fluid as virgin as possible.

Peteski

Most preventative additives are trash, just keep the fluid in check and both engine and tranny will run fine.

Thinking of going with Amsoil synthetic trans fluid to take advantage of the extended time between changing it...keep a potentially inexperienced mechanic and their flushing equipment FAR away for a while since I still don't have mechanics that I trust. Of course, I don't think I could EVER go 100,000 miles without changing it like they say you can. Geez, c'mon! Amsoil says it can go 60,000 miles under severe type conditions (extreme stop and go, etc like my situation certainly is). I could probably wait til 60K and feel comfortable since I know people with Hondas (whether that makes a big difference or not) who use Amsoil trans fluid and change it every 50,000 and the used fluid comes out in good condition.

Still haven't been able to decide if going with Amsoil synthetic for the engine is what I want to do. I KNOOOOOW that I will be changing the engine oil WAY more often than a synthetic would require. Still up in the air on that one...I have literally read ALL the posts about oil on this forum so if anyone is interested just do a search...plenty of opinions out there. I have heard a LOT about the Rotella type oil that people swear up and down about, but fewer people seem to be using the synthetic it appears.

I have heard a LOT about the Rotella type oil that people swear up and down about, but fewer people seem to be using the synthetic it appears.

The advantage to an oil like the Shell Rotella is that diesel oils do not have to meet the new API SM standards for automobiles. The API SM standard put severe limits on the ZDDP anti-wear additives that could be used in automotive oils. There are some diesel oils on the market such as the AMSOIL Series 3000 Synthetic 5w30 Heavy Duty Diesel Oil (http://www.c66racing-synthetics.com/Product%20Bulletins/HDDPB.htm) which are synthetic and not limited by the API SM standard. But be careful, there is a new API diesel standard on the market for 2007 and later diesel engines that puts similar limits on the oil, the API CJ-4 standard. But the older CI-4 diesel oils will be on the market for years.

For your tranny, I'd just stick with a high quality synthetic such as the AMSOIL ATF (http://www.c66racing-synthetics.com/Product%20Bulletins/ATFPB.htm) which is the same tranny fluid I've been using in my 2002 Corvette Z06 on the track for several seasons now (without any tranny failures). :cheers:

Woodchips work well.

Woodchips work well.
:thumbsup:

I agree, no additives. The fluid is designed to do the work itself, much like motor oils are. I recently saw a demo online (can't remember where) about what Lucas additives do to your engine. It is like having a bunch of peanut butter in your mouth and trying to take a drink of water. The additive keeps the fluids from reaching the areas where they need to be. They may quiet engine noises but they are so thick they keep the lubricants away from your parts and allow air pockets to form (like an aero chocolate bar). You can't get a miracle in a bottle without three wishes.

Woodchips work well.
Sawdust is for the rear end, bananas for the transmission.

Sawdust is for the rear end, bananas for the transmission.

Well, I did know someone who though that 'liquid steel' helped fix rod knocks...Ooops!