I saw it the other day at Wal-Mart. Sure enough, it is A3... at least the one I picked up was. Wal-Mart is famous for having old stock of oil on the shelf, so YMMV.
Valvoline has a low additive package too. Yet, I've ran across hundreds of people that say, "My pappy's truck went 250,000 miles on valvoline every 6,000 miles."
Bringing this topic back to life. My question is that I picked up about three 5qt jugs of 10w30 ST Syn and I will be wanting to use this next time around in my 2000 Ranger Flex Fuel 3.0l. The truck has 46,000 miles on it and I am worried about the term high mileage formula. It says it has seal conditioners in it. Well what is that going to do with my seals on the truck when it does not have high milage? Should I not use this or will I be alright with this product?
Group III and Group IV based motor oils need seal conditioners to maintain seal swell. Early Group IVs were leakers until Mobil got the bright idea to blend in esters. Group I oils are relatively high in aromatic solvents that maintain seal pliability, but Group III base oils are almost devoid of the stuff. Group IV base oils are totally devoid of the stuff. Go ahead and use the ST syn you bought. There's nothing in it that'll cause harm. That "High Mileage" moniker has more to do with the fact that not many engines specify 10w30 any longer - just refers to engines that originally specified that viscosity range more than any assumption that older engines are wheezers. I have an '03 Sonata with ~19,000 miles on the clock. It's seen nothing but 10w30 since its first oil change. That's all it'll ever see under my care.