[Geoz1]

Originally Posted by rcooled

My VWs live in a moderate climate, so I use Joe Gibbs 10W-30 conventional oil with high ZDDP designed for classic vehicles.
Available from Amazon: https://www.amazon.com/Gibbs-Driven-Racing-10W-30-Conventional/dp/B003XUF7IE/ref=sr_1_21?dchild=1&keywords=joe+gibbs+10w-30+hotrod+oil&qid=1586140024&sr=8-21

If your vehicle has a 20k plus miles, or 100k miles, ZDDP does nothing for it. ZDDP is zinc. It was added to oil to aid camshaft break in. I was not good for cat converters. Once the cam and lifters go thru heat cycles, they have "mated". ZDDP is not necessary.

With that said, if you only start your car once every few years, high ZDDP oil is good.


ZDDP/Zinc protects cams and lifters. Not piston rings or bearings.