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elsargento |
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#1
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Newbie ![]() Group: Members Posts: 44 Joined: 9-September 06 From: Topanga, California Member No.: 6,802 ![]() |
Been running Castrol 30wt and I'm thinking about changing to multiviscosity. Any suggestions? Was thinking about 20-50wt Castrol. socal cold mornings and warm hill climb in the afternoon. (IMG:style_emoticons/default/welder.gif) (IMG:style_emoticons/default/sawzall-smiley.gif)
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tat2dphreak |
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#2
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stoya, stoya, stoya ![]() ![]() ![]() ![]() ![]() Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region ![]() ![]() |
vlovoline VR-1 has the high levels of ZDDP... regular valvoline or regular casterol does not, I'm pretty sure casterol's "Race oil" probably has more ZDDP than regular.
I did some searching around the web for high-ZDDP alternatives to Brad Penn, and Valvoline VR-1 had very near the same amount of ZDDP, and came highly recommended by several local aircooled mechanics and racers. |
rfuerst911sc |
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#3
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,158 Joined: 4-May 06 From: Dahlonega , Georgia Member No.: 5,980 Region Association: South East States ![]() |
vlovoline VR-1 has the high levels of ZDDP... regular valvoline or regular casterol does not, I'm pretty sure casterol's "Race oil" probably has more ZDDP than regular. I did some searching around the web for high-ZDDP alternatives to Brad Penn, and Valvoline VR-1 had very near the same amount of ZDDP, and came highly recommended by several local aircooled mechanics and racers. The downside to VR1 ( I think ) is that because it is a " race " oil it doesn't have the proper amount of detergents for a street engine. If that is true then you have to be careful with drain intervals. Not sure it can go 3,000 miles, the best way to know is oil analysis. Many oil threads out there that say Brad Penn and Swepco both have the ZDDP needed for our flat tappet engines AND a detergent package for the street. Motor oils that used to be good that have recently been re-designed to give better catalytic converter life are no longer good for our older flat tappet engines. Good luck to all of us to keep our engines performing as expected. |
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