I simply couldn't help myself...because at 9.99/5qt jug, I couldn't turn down an oil..
Anyways, I picked up a few jugs of Service Pro syn blend in the 5w30, and slightly in debate in what I should do with them (Throw in in the Cobalt with a puro classic for 5k, or use it to change other's cars)
Since it seems some of the other blends are at least 50% synthetic (motorcraft, for example), how safe could one assume that SP's blend would be at 50%?
Besides, for a beater, the Cobalt is pretty spoiled getting synthetic for it's oil changes....(and has had nothing but for the last 33k I've owned it.....)
Anyways, I picked up a few jugs of Service Pro syn blend in the 5w30, and slightly in debate in what I should do with them (Throw in in the Cobalt with a puro classic for 5k, or use it to change other's cars)
Since it seems some of the other blends are at least 50% synthetic (motorcraft, for example), how safe could one assume that SP's blend would be at 50%?
Besides, for a beater, the Cobalt is pretty spoiled getting synthetic for it's oil changes....(and has had nothing but for the last 33k I've owned it.....)