that motor is a solid motor, most people participating in the class action suit chose to follow the owners manual for their car which said to change at 7,000 miles, instead of the norm of 3,000 - 3,000 miles. Sluding is bound to occur if you wait that long.
Then Toyota should not be recommending change intervals that far apart.
My point is this, how can you say for certain that everyone will fare the same as you using all different kinds of oil.
I can't, of course. And it can't be said for certain that using only one brand of oil will prevent sludging. THAT is all I was trying to say.
Maybe your block will stay clean, but how can you say for certain that every car or truck will run for 200,000 or so miles without also suffering from seals and gaskets swelling or cracking as a result of using different kinds of oil which may differ slightly in their formulas?
Please cite a reputable source for this assertion. I've never heard of seal or gasket problems caused by using different brands of oil. I've always figured when an engine gets 200k miles on it, it's bound to have problems of that sort regardless of maintenance practices.
Again, sticking with one brand of oil offers consistency, and like it or not, there is intrinsic value associated with that.
But again, what if a guy picks the wrong brand???... what are some bad brands? You didn't answer my previous questions.
BTW, you said in your earlier post that you change your oil at 3k then you say you recently switched to 5k intervals, I think your last post invalidates your argument on the first post.
No it doesn't. I changed my practices VERY recently, as in; my latest oil change last weekend was the first time I intentionally went 5k miles. The pic I posted was from a few months ago.
As most oil threads end up, we'll just have to agree to disagree, because neither of us is going to change the other's mind. Do whatever makes you feel good. I hope I haven't offended you, as that was certainly not my intent.
Sorry for the thread jacking wirebaugh, I'll shutup now.