I got a lot on sale, but I would pay the $4 price if I had a nice newer engine for it that did not burn oil. Otherwise, to synth or not to synth is not a big deal in my eyes, especially in engines that were aquired 2nd-hand. I'm actually doing a run of Pennzoil dino before switching-in the PP. I'm not paranoid about flushing out the previous oil, additive chemistry or anything...I just happened to have some PZ dino from the same PepBoys $.69c rebate and it's still summer. This is the first time I've used PZ ever! Wear rates on PZ dino are pretty good and I think PP is up to snuff, heck how many oils actually bother to claim "A5", probally the best spec for my Hondas, besides HT-06, which it also meets. No complaints.