OIL RECOMMENDATION 85-928S, 80k

[PC-85-928S]

Can anyone give me a good recommendation for oil for my 1985 928S with 80k.
Brand and weight apprecialted. I am in NY and the summers get warm.

The other posts I have read get very involved.
I am ok with spending a little more for synthetic if it is worth it.

[Z-man]

What are you using the car for? Daily driver, weekend toy, track toy? All year round, or just a fair weather car?

-Z

[M.D. Holloway]

Prolly a 5W-30 - Certified Labs STRATA XTREME (can't buy on-line or in stores); have to qualify to get it. Absolutley the best oil available at any price.

[javadog]

I happen to like Swepco 306. It's available in 5W30 and 15W40. Lubey can tell you what weight is best.

Also have an '85 928.... for what it's worth.

JR

[Heel n Toe]

As you probably already know, the oil filter you use is very important, too.

Four words: Don't bother with Fram.

Jake's Garage: Oil filters... more than you EVER wanted to know
http://minimopar.knizefamily.net/oilfilters/opinions.html
Oil Filters Revealed - MiniMopar Resources
Engine Oil Filter Study: German Filters

[yetibone]

Brad Penn, Penn Grade 1. 10w30 if you don't mind 1 BAR at idle, or 15w40 if you do.

I use it in my '83 928.

[DanielDudley]

85 928s are subject to cam pitting, just like a 911. You need a high ZDDP oil like Brad Penn, Valvoline VR1, Redline or Royal Purple. I run 20/50, factory suggests 10/40.

Rennlist has an excellent 928 forum BTW. There is also a good one here where they would be happy to help you.

I also run an 85 928 in NY. Have fun, and join the 928 Owner's Club. They do stuff.

[Arizona_928]

Originally Posted by javadog

Also have an '85 928.... for what it's worth.

JR

Same here. I mostly stare at it though.......

[porsche4life]

Originally Posted by AZ_porschekid

Same here. I mostly stare at it though.......

Thats what JR does with his too... He's got so many cars he can't decide which to drive and just stares at them all...

[Z-man]

5W-30 may work for certain applications, but I would hate to put my 944S2 through its paces on the track on a hot summer day with that thin an oil. OTOH, 15W-50 (which I use) may be too thick an oil for the winter months, if that car's a Daily Driver.

That's why it is important to know what the car is to be used for.

-Z

[M.D. Holloway]

Considering the Cam pitting issue, look for an oil that is not API CJ-4, they have reduced ZDDP levels.