After a lot of researching I'm thinking of switching to the VR 1 conventional. I stopped in and talked to my mechanic that I purchased a used crate motor from and did the install and found out it does have a flat tappet cam for sure.
While there I asked him about switching to VR 1 and he kind of chuckled (I think he new it was coming) and said it wouldn't hurt anything but wasn't necessary that today's oils would work just fine on a stock flat tappet engine. He did say that he uses bulk Valvoline because its the best all around oil for older and newer engines because it uses different additives than other conventional. I didn't ask what he meant by that or what they were because he does what I do at work when I want a customer to go away, start throwing technical jargon at them.
After comparing the PI sheets their are some differences, Zinc/Phosphorus of course and the calcium was higher in the VR, 0.167/0.210. Now I'm just going by the spread in numbers as I'm not all that familiar with what each does or what difference the amounts make, there are probably smaller differences that mean more.
Right now I'm doing 6 month OCI's (short tripper) so the fact that Valvoline recommends 3000/3 month OCI's for VR 1 is not an issue and the added cost would only be $1.70 a qt.
I looked into Rotella but I can only get it in gallon jugs so it wouldn't be as convenient. To bad because TSC has the 10w30 for $13.29 every day.
It seems about evenly divided on other forums and websites, either they say you will be fine using today's oils or your crazy if you're not using oil with higher zddp. This is just stock no high performance engines.
I'd like to hear from other guys that have flat tappet engines or been around these engines a lot on why or why not to use an oil with higher zddp. I searched the UOA threads back 48 months but nothing came close enough to compare.
http://content.valvoline.com/pdf/premium_conventional.pdf
http://content.valvoline.com/pdf/vr1_racing.pdf
While there I asked him about switching to VR 1 and he kind of chuckled (I think he new it was coming) and said it wouldn't hurt anything but wasn't necessary that today's oils would work just fine on a stock flat tappet engine. He did say that he uses bulk Valvoline because its the best all around oil for older and newer engines because it uses different additives than other conventional. I didn't ask what he meant by that or what they were because he does what I do at work when I want a customer to go away, start throwing technical jargon at them.
After comparing the PI sheets their are some differences, Zinc/Phosphorus of course and the calcium was higher in the VR, 0.167/0.210. Now I'm just going by the spread in numbers as I'm not all that familiar with what each does or what difference the amounts make, there are probably smaller differences that mean more.
Right now I'm doing 6 month OCI's (short tripper) so the fact that Valvoline recommends 3000/3 month OCI's for VR 1 is not an issue and the added cost would only be $1.70 a qt.
I looked into Rotella but I can only get it in gallon jugs so it wouldn't be as convenient. To bad because TSC has the 10w30 for $13.29 every day.
It seems about evenly divided on other forums and websites, either they say you will be fine using today's oils or your crazy if you're not using oil with higher zddp. This is just stock no high performance engines.
I'd like to hear from other guys that have flat tappet engines or been around these engines a lot on why or why not to use an oil with higher zddp. I searched the UOA threads back 48 months but nothing came close enough to compare.
http://content.valvoline.com/pdf/premium_conventional.pdf
http://content.valvoline.com/pdf/vr1_racing.pdf
