Meh I have no problems so far with the Lucas heavy duty oil stablizer and I got 170k on my truck still burnin rubber luckily.

 

I've never heard anyone saying they've had problems out of it and I work at a parts store.

As for me though, the only thing I stick in my vehicles is Mobile 1. It's expensive but you'll always notice an increase in power and fuel economy vs. conventional oil. And like the other guy said it lasts longer. Course if you wanna leave it in there for 5000 miles you need to get a heavier duty oil filter like a Fram Toughguard, Mobil 1, or K&N oil filter. The others aren't designed to last more than 3000 miles.

 

A/C Delco is not matched to GM's OLS?

 

FYI, Fram Toughgards and Advance Auto filters are the same, don't believe me, buy both and cut them open. Same setup, filter style, core, capacity, etc. Only difference is the AA filter is half the price and is completely covered in that grip stuff.