Hi all,

Tomorrow is the day I'm heading out to buy my 360 for my 92 Dak. Found what I think is a heck of a deal compared to my other options. 98k mile 360 for $250 out of a 99 full size. Going to start a build post soon but was curious as everyone has differing opinions. As it is a roller cam and everything, and with my mild build (small cam keeping stock computer, 1.6 Harlands, new bearings and rings and such), would a high zinc oil really make sense to run? I know the older style flat tappet engines needed zinc more, but while planning to run Valvoline Full Synthetic, should I run normal full synthetic or their vr1 "racing" oil which has a higher zinc level. I was also planning to run 10W-30 as that's what the manual recommends, unless 15W-40, or 10W-40 would be a better choice.

It will of course be a work truck and not a hot rod, so nothing too crazy will be happening. Under 5000rpm always, cruising below 3000, medium loads from time to time.

 

For a fresh rebuild, going with a high-zinc oil for the break in period sure wouldn't hurt. After that though, regular 10W30 will be fine. You can spend the extra, and run synth if you want..... I don't think there is much of a price difference any more..

 

Yeah I figured such, just was curious. Valvoline doesn't actually make a dedicated break in oil, but I'm going to run 5 quarts of Lucas for the first couple days then switch to a 10W-30. I'm thinking about running full syn as I work at Valvoline actually so I get 50% off oil changes lol, so the price isn't really a worry for me at that point.

 

Finding non synthetic oil is getting harder.