Originally Posted By: wemay
Sometimes i wonder how much of an
oil website Bob's truly is. Sure, there are those on here who vehemently defended the capabilities of Conventional oil like Dnewton3, Dave1251 and a few others, but for the most part it seems conventional oils are seen in a very poor light by a large number of bitogers...
Some of the misconceptions:
-If you winter above the Carolina's, synthetic is needed for proper warm-up.
-If you summer south of the Carolina's, synthetic is needed due to the hot and humid summers.
-If using conventional, varnish and sludge are almost certainly going to happen with detrimental effects.
-Because synthetic is recommended in Europe, it must be better. Even if not recommended for your application in the new world.
-Synthetic undoubtedly protects better than conventional at any OCI. In other words, if you want your vehicle to reach 300K miles, its not even a question.
In celebrating the benefits of synthetics where they are needed (and there clearly are benefits), many members attempt to knock down the usefulness of conventional oils to the point where if you didn't know better, you'd think that only synthetics are getting all the R&D and improvements and "dino" has been frozen in time since 1975.
Cold flow is over-rated here. I stress and have stressed that a 5w20/30 conventional will get you just about anywhere in the US and Canada if needed. My personal favorite is when someone said they noticed a difference in starting by using a 0w30 in their snow blower in mild cold temps. I'll admit I like Castrol 0w30/40 and M1 0w40 though because of the A3/ B3 qualities.
Back when I first joined, I was under the impression synthetic did better in heat as well, but i was uneducated on the matter. Car parts stores as well as other car specific forums push the alternative. I love the diversity of BITOG. Not just a Ford, Jeep, Audi specific forum. We have NA engines, turbo'd engines, air cooled etc.
My go to is still conventional for the things that can use it. I'd be running it right now, but I had an emergency with a jug of leaking M1 TDT. (never stashing again!)