Originally Posted By: Zako2
The frequent discussions on this topic do make me nervous about it. Otherwise, it seems like a fine oil, with a synthetic blend base oil and better additive than Valvoline conventional.
I wouldn't be nervous about it. However, I wouldn't be jumping to spend extra on oil for a vehicle that didn't have symptoms to address in the first place, or a desire for a non-ILSAC oil (which a lot of the HM ones are). I've used MaxLife and it's a great product. Since my G doesn't leak and the F-150 no longer does, and neither consume oil, I simply have no use for it.
As for conditioning seals, all API/ILSAC oils (and, for that matter, the non-rated boutique oils, ACEA oils, and so forth) all have seal compatibility taken into account with their formulation. But, if only HM oils were available, or I was given only MaxLife to use, I'd use it happily and without worry, be it a new or old vehicle. In the old truck, the MaxLife definitely withstood the fuel dilution better than other 5w30s, and it certainly helped minimize leaking until I was able to actually address the real problems.