Other oils are allready proven... do not argue with success, these guys will! ... . and..... I read the L O N G threads in recent days and find absolutly no answers to back up the oil in question... . gosh seems like a real simple request being the cost of the stuff
Let's be fair here. (and please hear me out - I intend to criticise both sides some, in
my effort to be fair!)
I have not once heard the Amsoil or synthetic fans claim that good Dino oils "don't work" or that people who use Dino oil at reasonable change intervals are "not smart". So I don't see anyone "arguing with success" from the Synthetic camp. But if you're really being fair, you know that the Dino Camp did call the Syn fans "not smart". Adding "IMO" or other qualifiers doesn't change that basic fact, and some of those earlier statements were the match that lit a fire we all wish would just go out, 'cause both sides are getting burned. If you are happy with Dino oil, fine, carry on. But please don't ask me why I use Synthetic, then tell me all my logic is invalid and based on "junk science", that my improved cold starts are a "perceived" benefit, not an "actual" benefit, and somewhere in the mix tell me I'm wasting my money and "not smart". If you back me into a corner and I come out swinging, you shouldn't cry "foul". Maybe too many of the responses were from "salesmen". But maybe that's because the satisfied "end users" like myself saw what was going on and simply walked away from a pointless fight in which we had nothing to gain. Life's too short, I have nothing to sell, and I really don't care which type of oil you choose. So why should I spend my time trying to convince you that I made the right choice for my needs, my driving demands, my truck? So you can tell me I'm wrong and insult me some more? No, I don't want to play that game.
Justify the high cost? Hum, just my twisted perception, I'm sure, but it seems to me many of the Syn fans have specifically stated that cost is a non-issue to them. My perception is that it is a small number of the Dino users who seem the most highly motivated to justify why they're
not using Syn. Again, a few salesmen aside, we really don't care what you use in your truck, and we'll be happy to engage in a two-way discussion of pros and cons with anyone who doesn't just return insults (direct or veiled, an insult is still an insult).
As to unanswered questions: You raise a good point! So far, the only one who has pointed out a high-mileage Amsoil user was me. As I said in that "buried" post, 500k+ and going strong with 75k change intervals. I also admitted the report was second hand, but I heard it from a non-Amsoil Cummins owner who talked directly to the high-mileage guy at a fuel island. Yes, they do exist - but I agree - we should provide additional examples.
Now, to the fair part: How many of the Dino fans posting this question have 300k plus? The fact of the matter is that most of the high mileage guys are out there on the road somewhere while I'm here typing this. The anti-Amsoil posters have also failed to answer some very key questions. I haven't seen a rush to report how many miles were on the engine when switched to synthetic and leaks began. This is a very important question which was raised, and, no answers. The "Amsoil leakers" (for lack of a better name) also failed to respond to a second important question: "Do you believe you would not have leaked with API-certified Delvac synthetic?" One leaker reported his leaks slowed after switching back to Dino. I hereby offer to donate $20 towards the cost of a change to Delvac 1, to see if the leak rate heads back up. Three more similar offers, and somebody gets a free oil change!
Those, who like me, have grown tired of this winnerless argument, need to go read the "Tale of Woe" thread in the 24v Engine and Drivetrain forum. It's uplifting, because it shows us what we
can be: A man on the road with problems - good trouble-shooting suggestions being thrown in short posts, and even an offer to "loan" a turbo to get the man home! GO TDR!