Justinp551 Posted May 6, 2012 Share Posted May 6, 2012 I have almost 5000miles on my rebuilt l28 and I have been putting valvaline VR1 10-30 in it. Not racing it, mostly freeway commutting to work with the occasional spin to 6500rpm. No issues but I find most shops carry it only in 20-50 and it's hard to find in 10-30. Also I have found it in 10-30 synthetic. I live in California San Fran area so temps re pretty mild. 40-100 degrees is about the range. What are the pros and cons of the 10-30 vs 20-50 vs more expensive synthetic VR1? Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted May 6, 2012 Share Posted May 6, 2012 Was you're motor rebuilt to stock specs? and what do you eventually plan on using your engine for? ( just DD or a lot of track time) 20-50 is a little thicker, its what I run. I'm in Florida, I haven't had any ill effects and I've done 2k mile trips and several track days. You probably wouldn't notice a difference, especially if your engine is already broken in and its a DD. Quote Link to comment Share on other sites More sharing options...
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