Quote:
Originally Posted by se2006
If you use Mobil I, why change it every 5K??? That is sooner then Toyota recommends, so you must have money to burn beside oil. 
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Hmmm... You must have a special Toyota manual that reads different than the normal 3K intervals printed in most others (including the Solara) especially with the known sludge issues in the 3MZ. I've been going with the 5K intervals and glad I'm not going any longer as it does get dirty - regardless of any possible breakdown or not.
With my Tundra I was off-roading a lot in it and needed to keep everything clean inside and out. With my Solara and the modified SRI and custom exhaust, I notice it gets dirty faster as well... yet another reason I don't over extend the oil change intervals. Pretty cheap performance and longevity insurance in my book.
