I have been a fan of the Redline stuff for years...It has CURED more cold
shift problems than I could shake a stick at...Not caused them from my
experience and customer reports...Esp in colder climates. There may be some
brands of the syncronizer ring that need a thicker oil to function
better..but the Laso german ones I use love the Redline...I suspect some of
the cheaper rings might have an issue,( but no first hand proof)
Any synthetic is going to be better than the dino oil of old as far as
bearing life and stability at higher temps...
That and changing it every 30K is the way to maintain them.
Daryl of AA Transaxle
(425) 788-4070
aatransaxle.com
----- Original Message -----
From: "Geza Polony" <gezapolony@SBCGLOBAL.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, March 11, 2007 10:04 PM
Subject: GL-5, GL-4, Redline, Sta-Lube, Royal Purple...

> What's the best to cure a synchro ring problem that's been there since my
> rebuild last year?
>
> Ron at Ron's Transaxles, the SF Bay Area guru of these things, swears that
> the Redline in my rebuilt 4 speed is causing a scratch from 1st to 2nd,
> esp.
> when cold. He tells me to change the Redline to dino GL-4. Problem is,
> GL-4
> is hard to get. The Royal Purple site says their GL-5 won't damage synchro
> rings, and there are plenty who swear by Redline. I know this has been a
> subject of discussion in the past and have searched the archives, even
> finding another reference to Ron in 2003 who was then giving thumbs up to
> GL-5. But now Ron has changed brands of syncro rings and that, he tells
> me,
> is causing the problem with Redline.  An August 2003 post from Daryl gives
> the ok to Redline.  Dennis, Oct 2002, says Mobil 1.
>
> Main choices seem to be Sta Lube GL-4 and Redline. But Royal Purple is
> supposed to be good stuff for engines...
>
> Anyway this scratching from 1st to 2nd is driving me nuts. Ideas?