84_Carrera

Steve, is this the stuff you're recommending?

Steve Weiner-Rennsport Systems

Yessir,..I buy it in a smaller squeeze bottle that they offer.

ron mcatee

Steve, do you recommend this for a 911 with 118,000 miles on the engine? Basic engine is all stock, but a "top end" was done about 40,000 mi ago to do valve guides, etc. If recommended, should it be added at each oil change?

Steve Weiner-Rennsport Systems

Generally speaking, I recommend this for all 911's (and some others) to replace the additives that have been all but removed from today's motor oils.

Its all about protecting the cams, rockers, and other EP parts from the accelerated wear that we've been seeing for awhile in engines that didn't have any issues such as plugged spraybars.

ron mcatee

Thanks.

andfar

So, per each oil change (10.57 qts) how much of that EOS assembly lubricant should I use?

Steve Weiner-Rennsport Systems

1-2 ounces is plenty.

bgiere

EOS is great stuff...there is another add pack available from Specialty Formulations which will boost the ZN and other anti-wear additives...It has been well received and tested in many circles...I have no affiliation, just a customer...

http://specialtyformulations.netfirm...products_id=37

ron mcatee

I found E.O.S. at a Chevy dealership near me. Cost is $8.79 for 16 oz.

84_Carrera

Yup, I bought it for $8.52 from my wife's Pontiac dealer, dropped in about 2 oz last night, and this morning was rewarded with a "wonderful aroma" coming from the tailpipe. Steve's assured me that's pretty normal.

A nice public "thanks Steve" for keeping us end-users up to speed with the necessities on our rides.

r911

I'll cross post on Pelican...

GothingNC

Thanks for the info on this everyone.

So I am assuming that I should add some EOS if I am running with Dino oil

Steve Weiner-Rennsport Systems

I think a guy should add EOS (or GM's Cam & Lifter Prelube) to ANY motor oil, now. Although these additives are not cheap, its still far less expensive than buying cams, rockers and the labor to install.

andfar

Steve, on vehicles with cat converter, would the EOS accelerate its destruction? And, is Mobil 1 recommended for older vehicles, say 1984-1989?

Steve Weiner-Rennsport Systems

Its possible, but honestly I've never replaced a cat on a healthy car that was running well (not rich; not lean) and Z-S-P additives have been in motor oils since the 70's.

I'm a fan of Mobil 1 in all 911's,....