Originally Posted by superdenso

If actually leaking oil at 0w20 I would go to 0w30. I use 0w30 now because it mutes the engine noises and marginally increases protection. I hear the TGMO has more moly, & I worked with fresh moly years ago. One time I got some on my hands without gloves and it just didn't feel clean; in other words it felt like it contained a bit of grit. So for me moly doesn't turn me on. Now that's not to say it doesn't work, or that all molybdenum is the same. It's just my observation. Further, if you chose to go 0w30, you could start with mobil1, and if you're still going through oil, you can switch to Redline. The Redline seems heavier and their rep told me it has a lot of zinc and zinc is the only additive that protects. I haven't checked that claim. Hopefully something arrests your leak

Originally Posted by Doublebase

I have been somewhat fascinated with this "moly phenomenon" for the last couple years...up until that point I didn't care about oil, I just change it on a regular basis and never had a single problem. But now with forums and oil chat rooms moly has become something that interests me. Lol.

Truth be be told moly probably feels dirty and gritty because it's kind of like a powdered metal when it's dumped in oil (very fine of course). And supposedly that moly gets into the little cracks and imperfection of moving metal parts and creates a barrier that protects those parts as they slide against each other in basic engine operation. This isn't the only additive that can do this, other brands use sodium as their main additive protection ingredient, and supposedly that does a great job as well. Either one would feel abrasive to the touch I suppose. And there are many other additives that serve a purpose..many in which seem to serve multiple purposes.

But out there are many people that run Toyota engines without any moly in them at all and those people are doing just fine using the sodium based oils...Valvoline, Redline, Royal Purple, Napa Sythetic, many many more. I work with a guy who has a Toyota Camry with 320,000 miles on it...he uses cheap Napa house brand conventional oil, and laughs at me when I go out of my way to find oil that has moly in it for my car (because I tell him my engine needs it). Even I have to laugh when I say that because it simply isn't true, but I'm kind of caught on this mental moly rollar coaster and I'm not getting off anytime soon. I find its best to do whatever makes you feel good with a car. If it feels good? Do it. You want to dump an additive in your tank at $10 dollars a bottle? Go ahead and do it. Even though I know what those additives do...I've torn down those motors...believe me injector cleaners and all that stuff do virtually nothing, but it makes people feel good, so do it. Right now I'm using an additive...I know it does nothing, but for some reason I feel good doing it, so who cares? I got the stuff for free anyway.

Originally Posted by Doublebase