My friends son has a 99 corolla with 290,000 miles that sometimes had a slight piston slap. I heard it tonight and it sounded pretty quiet he used pennzoil 5w30 syn blend.. I always found that syn makes engines with piston slap louder...I was impressed... Does anyone have a used oil analysis on that oil it seems to be pretty good in his abused corolla.. Is that oil the same as the yellow bottle mixed with synthetic?
Pennzoil Syn Blend (dexos) 5w30
- Thread starter crazyoildude
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I would tell your friends son to add some liqui mmoly mos2 to his oil. It might allow it to run a little longer. And no the conventional oil and the synthetic are two totally different kinds of oil.
those corolla engines of that era 98-99 were bulletproof the new ones are not as good for sure. we very seldom saw the older ones here for a rebuild 2003 and up we see.
I have never seen a used oil analysis/VOA of it despite a lot of discussion on it here. If it has the same add pack as Pennzoil conventional but with the dexos 50% syn base I'd be all over the stuff.
But alas we do not know.
But alas we do not know.
I have it in my 04 Accord right now. Maybe I'll pull a used oil analysis when it's time. Kinda curious myself. I have to say it certainly works in the Honda every bit as well as the Pennzoil conventional I had been running. It would almost be a VOA since my Honda hardly throws any wear metals at all!
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