Re: best oil
OK, Ill play now:<br /><br />I have seen the test you are so proud of and the only explination I can give is that every one of those pistons came out of a dfferent engine. Also it does say that it was a "Multipurpose synthetic oil. May have not been the right oil for those engines. I dont know how they were tuned or anything else about them other than what is in the artical. Also the cylinder heads on the two right hand pistons are very carboned up telling me that they wer running quite a bit richer! I find it "VERY" strange that the synthetic piston is showing more deposits with the synthetic because it goes against every other test I have ever seen, including my own showing deposits with synthetics. I can say without reservation that Amsoil would never look like that.<br /><br />In vehicles, cars and trucks, I beleive that synthetics will help combat wear better than conventional oils, they are an overkill though unless you are wanting to change your oil less often or protect a hard working engine as they do stay in grade longer in high heat situations.<br /><br />I use 100% synthetic in about everything that moves around my place, except my Rotary as it really dosent like it. Besides running though it like water, it actually does cause more deposits on the plugs. Now we are talking about a whole different oil injected animal here with 295,000 miles. Its dello 400 15W-40 for it. That reminds me, its due for an oil change.<br /><br />I like the 100% synthetic in my outboard mostly for the less smoking and the clean running, I never decarb anymore. The engine does seem to sound different also but thats here nor there. I have used the WallMart oil before, it was fine, I just dont like the Idea of never really knowing for sure who is making it for them this week or the next. And, no matter what you may say, even though it will meet the TC-W3 designation, It wont be any better than it absolutly has to. There are better reasonably priced outboard oils out there.
