What are you guys using? 9" Pro gear 40 spline spool. Mid 9 quarter mile.

Mobil 1 75w-90 for about 30 years and Lucas 75w-90 synthetic since 2019.

2 qts of synthetic....

Thanks for your responses.
Ed are you using Lucas Synthetic now in both your cars?

What kind of gear life are you guys getting?

yes

amsoil for me

Eaton 80W 140 full synthetic.

JR, where are you getting your Amsoil products? Can't find it in the Kilgore, Longview area.

75W-90 Mobil 1 for me. Of course, I don't make the sort of power most folks here do. Take care. Tom Worthington

Amsoil Blue Shock proof,Hopefully good.

quote:

Originally posted by Brad Owens:
What kind of gear life are you guys getting?

Sent both my MW Pro Stock aluminum 3rd members back to Mark Williams for new gears/rebuild at the end of the 2019 season. They told me the gears looked almost new and in fact sent me the gears back for spares and all I’ve ever run is 2 quarts of Mobil 1 75w-90 synthetic gear oil up to that point and both units had over 700 passes on them. Now 3 years later, using Lucas 75w-90 synthetic gear lube, I imagine both 3rd members have in the 600 run range.

I was told not to run synthetic by moser. I run Lucas non syn 75-140.

quote:

Originally posted by Little Chief:
JR, where are you getting your Amsoil products? Can't find it in the Kilgore, Longview area.

I can order it myself

Been using synthetic 75/90 valvoline in my ride for many years about any name lube works its only a 1/4 mile geez!

Someone asked this question on another board and Mark Williams replied that they recommend non synthetic oil.https://www.yellowbullet.com/threads/what-gear-lube-are-you-using.2679410/#post-73817706

I just go to Walmart and get 2 quarts of Valvoline 80/90.

Schaeffers 75x-90 GL5 gear lube.

Redline Shock Proof synthetic. Never had a failure. High 7 second roadster.

Bob

Thanks everyone. I've been using Lucas 75W-90 Synthetic for years. I also was recently given the advise by a well respected manufacturer not to use synthetic. Lucas has worked well for me, I'm just going to stick with it. Thank you for your responses.

There is no good reason not to use synthetic gear oil.