Oil
 

I am due to change the oil in my 69 FB OHC. In the past I have used GTX 20W-50 but it is getting impossible to find. What would be a good choice of oil for the old engine that has never been rebuilt?

Thanks

Gosh, I get GTX 20w-50 all the time at O'reilly's and Pep Boys. Gets pretty cheap at Pep Boys when you wait for the rebates from Castrol and Pep Boys. I also use ZDDP Plus with it.

milt

valvoline racing oil still has the additives you need

Pep Boys is a 25 mile trip here so I rarely go. Walmart / Oreilys / Autozone occsionally have the 50 weight oil but only a few quarts are on the shelf. I used to be able to buy it in the 5 qt jugs for cheap but I never see them anymore.

Sounds expensive

VR1 and No need for additives...
 

I think the OHC is worth it.
I have it drop shipped to the house so I don't have to hunt it down.
This way it's always on the shelf.
To me a $30/40 dollar oil change is OK to keep the OHC alive.

http://www.amazon.com/Valvoline-VV20...ion/B000CQ4DEQ

X2 on the Valvoline Racing Oil, granted a cam change is easier work on a OHC-6 then on a V-8, but parts are getting scarce as we all know.

I would also avoid any full synthetic oil, no one has ever done any testing on the use of synthetic oils, with the old metals used in the older engines. There was a rash of lower rod bearing (pontiac V-8's) and cams and main bearing (chevy V-8's) failures when the synthetic oils 1st came out.

I spoke to a couple of GM Powertrain Engineers at the time, and they suspected the oil.

Dont take this as a knock against the oil, great stuff for the engines that were designed for its use!!!! I just do not want to be the one experimenting with it on my older engine. My 2 cents

You sold me. Thanks for the link

FWIW I found Valvoline Racing VR1 20W50 at a local Oriellys for $5 a quart.

I order mine from Amazon.com, usually with free shipping.

Back when I had my Lemans Sprint, I used Amsoil in it, it was the only synthetic readily available, as i recall. No issues.

George

The Brad Penn oil is what I use. It is the old Kendall green oil with plenty of zinc. They have a nice website. Chad

Oil
 

I use Joe Gibbs Hotrod Oil 15w-50 in all of my older cars, both V8 and OHC6 engines. It's petroleum based and has the Zinc and Phosphates to protect the Cams of the older engines. It also provides moisture protection in the engines if the car sits garaged for a period of time between outings. I use the Joe Gibbs "BR" break-in oil as well. Really like these products....it is a little pricey...however much cheaper than a rebuild or buying API compliant oil and using the additives. You can goggle Joe Gibbs Racing oil and find lots of information and jobbers who sell it. For those of you in Dallas, I get mine at a performance shop in Wylie, TX.

Tom