pethier Posted July 31 Share Posted July 31 On 10/13/2022 at 2:50 PM, TheDingo8MyBaby said: I find the local O'Reilly's carries 20w-50 VR1, but it may be stored behind the counter (I checked first on their website where it was in-stock). It's not that much more than expensive than diesel oil. In West Saint Paul O'Reilly's, it is $7.60/qt when bought in 5-quart containers. Link to comment Share on other sites More sharing options...
Grady Posted August 1 Share Posted August 1 I have studied this topic extensively and have come to the conclusion that New oil is the best. 2 Link to comment Share on other sites More sharing options...
Dave W Posted August 1 Share Posted August 1 The diesel oils have the ZDDP for the anti-wear but lack the anti-foam additives needed for the high RPM gasoline engines. I use 3qts of Mobile 1, 5w-30 and 1qt of VR-1 20w-50. I change oil once a season or if I reach 3000 miles along with a new Wix filter. Link to comment Share on other sites More sharing options...
slowdude Posted August 2 Share Posted August 2 Since you can't get zinc easily, zinc addative or liquimoly friction inhibitor essentially serves the same function. 5W-50 for my k series. Link to comment Share on other sites More sharing options...
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