Originally Posted By: RegDunlop
What is your favorite sleeper oil in the following categories:
A: Dino
B: synthetic blend
C: full synthetic
D: high mileage
E: oil filter
Also what makes a product a "sleeper?"
A: Dino - Peak FAR, Chevron Supreme and Havoline $0.49/qt after rebate.
B: Synthetic blend - Maxlife $4/gal after rebate.
C: Full synthetic - Valvoline Synpower and Maxlife as low as $0.49/qt after rebate.
D: High mileage - Maxlife $4/gal after rebate.
E: Oil filter - Bosch as low as $2 online after rebate.
I had Maxlife full synthetic and semi-synthetic and it is a high mileage oil. I only bought oil when it was dirt cheap or free after rebate, the only real cost was tax and stamps. All dino and semi-synthetic was used up, all oil remaining in my stash is synthetic: Mobil 1, Valvoline Synpower, Pennzoil Platinum, Pennzoil Ultra and Maxlife full synthetic.
Maxlife full synthetic was a sleeper oil 4-5 years ago, every few months Kragen had it on sale and with rebate the cost was as little as $0.49/qt, then Valvoline Synpower took its place, as late as last year I bought 4 gallon Synpower for $0.99/gal after rebate.