Printable Version of Topic

Posted by: mskala Jul 22 2006, 06:16 PM

Question for oil experts?

Just today I saw (in wal-mart) that they sell an oil targeted to
Pre-1988 cars, and it is an API SF rating.

What's the deal with that? Not being a chemist, I've been
putting the new stuff (now at API SM rating) in the car thinking
new oil is better at everything. Is there some reason to use
old formulas?

They even have a warning not to use it in newer engines
designed for newer ratings, which I can understand.

Posted by: Elliot Cannon Jul 22 2006, 06:26 PM

I have never seen this oil because I will NEVER, EVER, shop at Wal Mart.

Cheers, Elliot

Posted by: eric914 Jul 22 2006, 10:10 PM

Ben listening to the union funded anti Walmart media campain a little to much Elliot???

Posted by: Aaron Cox Jul 22 2006, 10:50 PM

they dont sell metamucil do they?

Posted by: Sammy Jul 23 2006, 10:30 AM

Older oils used an additive that was detrimental to catalytic convertors and O2 sensors, but they have been around longer than 1988 so I got nothing.
Prolly the same thing as almost every new other oil product, it's all marketing and hype, no substance.

Posted by: Rrrockhound Jul 23 2006, 02:10 PM

You don't have to listen to the librul media to know Walmart sucks ass.

Posted by: mskala Jul 23 2006, 08:37 PM

I don't know, it seems if they are trying to say a particular old spec oil is better
for your old engine, they should elaborate, or try to tell us what is going to
happen if we keep using the new stuff. Crap, I sometimes buy the industrial
turbo diesel spec oil for the 914-6. I must really be livin' on the edge.

Posted by: MattR Jul 23 2006, 08:50 PM

Did they turn down your application as door greeter?

Posted by: Aaron Cox Jul 23 2006, 08:51 PM

ROFLMAO

Posted by: grasshopper Jul 23 2006, 08:57 PM

Posted by: Bartlett 914 Jul 24 2006, 08:12 AM

There was a good article in Hot rod Magazine (June or July) on this topic. The problem deals with solid tappets and cam wear. Older oils contained aditives that when burned damage the air and your cat and o2 sensors. These additives are being phased out. The magazine suggested a Shell oil used in Diesels that still contain these additives. I started using Royal Purple. So far no problems except in the wallet.