993James993

Now that my new garage is usable I'm planning out my DIY fun. High on the list is new gear oil.

I sometimes notice a little notchiness in shifting from 1st to 2nd and would like to smooth that out as much as possible. My '95 has the RS Clutch/LWF and I like the noise the flywheel makes.

So far, based on searching here I'm leaning toward Mobile Delvac.

Anyone here using this or have a recommendation for another type?


Thanks,

Jim

ryano

I am currently running the Delvac.... and I also tried Rennline for a few months before that. I found that the Delvac made the shifting slightly smoother than the rennline but my notchy 1-2 shift is still there. The general idea around here is that every car is different... not all cars act the same with the same gear oil. I would give the Delvac a shot and see how it works for you

matt777

There are oodles of threads on this topic. I currently am running Delvac but it is not the best oil for reducing the notchiness of the 1/2 shift IMHO. I thought the Amsoil did a better job. Others seem to like Redline.

randytrish

I'm running Delvac and not experiencing any issues. Depending on where you're at it can be hard to locate by the gallon. I purchased mine at my local Grainger supply.

No HTwo O

I am using Mobil Delvac 75W90. Excellent shifting. I recommend sending your used oil sample out for analysis, to a lab like Blackstone, to establish a base-line for wear metals.

trophy

I switched to the Delvac back in September and cannot wait to get that oil out of my transmission. It made 1-2 and 2-3 changes notchy. I'll be going back to the Motul i have been running for years.

Vorsicht

I'm about to do this as well. I'm going with SWEPCO 201 available at Pelican. Most people are very happy with it. Any naysayers?

flatsixforme

I have been using Rennline 75w90ns for the last two fills and this last fill has seen lots of track time with no issues. I don't notice any notchy shifting...at least not enough that bothers me. I've never used Delvac or the Swepco but have thought about trying Swepco.

Quadcammer

I run delvac and its fine.

I think people blow the differences between fluids out of proportion by a large amount.

matt777

I've run 3 different oils in my tranny and the difference was not significant ie the notchy 1/2 shift when cold did not go away completely (I think this is normal anyway)

C4SJOHN

I have been using SWEPCO 201 for the last 7000 miles and not had any issues shifting....

mhm993

mobil here. No trouble in hot or cold.

Bill Verburg

Swepco is more of a 915 transmission thing, great stuff, I use it my 915 but the more modern g50 syncros respond well to synthetics like Delvac

Delvac got g50, Swepco for 915

1pcarnut

Went through about 3 different oils and ended up making a cocktail: 50/50 Redline and Mobil1 LS off-the-shelf. Pleased with the smoothness of the shifts now.

dmwallace

I had my transmission oil changed a few months back and went with Delvac after reading through most of the threads in this forum. Transmission is shifting just as good as before the change. I also had to call around to find a jug; the Grainger location in the next city had it in stock.