bfloyd4445
Silver Member
Did you ever read my post?
I specifically said: "I'm not against using synthetic transmission oil".
That being said, I have also had vehicles go over 200K. I scrapped a 1997 Villager last year with 248K on it, and it ran like new. It also never saw a drop of synthetic oil.
If you actually study the performance data of conventional vs. synthetic, you will see there is no substantial difference in lubricity, under NORMAL TEMPERATURES.
This is because the evolution of synthetic oil, has also led to the evolution of conventional oil. Making both equally as good, under NORMAL TEMPERATURES.
Which is why I said, "or, notice any other substantial performance difference, in a premium brand hydraulic transmission oil, vs. synthetic, under NORMAL TEMPERATURES".
Synthetic oil only has a performance advantage in extreme temps. And, if you want long drain intervals. It cannot solve world hunger, and peace.
Yes I read your post and all the others as well in this thread. You are right in that a big advantage is syn's ability to operate and lubricate at extreme temperatures. Extreme heat is an everyday occurrence for working engines under load. The ability for syn to lubricate at these high temperatures when conventional oils turn to sludge means the engine will last longer in itself.
Fuel economy improvement is one so called advantage i have not been able to confirm.
Resale value being much better i can most definitely confirm. I have not owned a vehicle in over twenty years that didn't have multiple offers to it from people always at my price no dickering. I like that.
synthetic oil in my opinion is cheap insurance if you plan on keeping the vehicle for a long time. Much cheaper than extended warranty