5w-20

WE3RX7 · 10-07-2008, 06:05 PM

Kevin, I appreciate you as a builder by all means and I'm nowhere near as an expert as you, but that owner is lieing. No way did running 5w20 cause that, there is definitely more to that story.

I took apart a 44K renesis dealership serviced w /5w20 since new and it showed no signs at all of wear to that level. The engine I took down didnt even use premix and was boosted. (engine failed due to bad tune, not oil)

Also - on the reman side. True there were problems with many remans and mazda actually stepped up shutting down their largest reman facility and opening a new one here in VA actually where "the master" and his apprentice, the same guys who assemble them in japan and oversee everything came in and did a review to be sure the same procedures used in japan are now put to use in the US rebuild facilities. I have more faith in the newer remans than the ones they offered for FDs, etc.

That being said, i'd still rebuild my own, but if the dealership is paying for it, who cares.

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10-07-2008, 06:05 PM	#14
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA Posts: 1,812 Rep Power: 19	Kevin, I appreciate you as a builder by all means and I'm nowhere near as an expert as you, but that owner is lieing. No way did running 5w20 cause that, there is definitely more to that story. I took apart a 44K renesis dealership serviced w /5w20 since new and it showed no signs at all of wear to that level. The engine I took down didnt even use premix and was boosted. (engine failed due to bad tune, not oil) Also - on the reman side. True there were problems with many remans and mazda actually stepped up shutting down their largest reman facility and opening a new one here in VA actually where "the master" and his apprentice, the same guys who assemble them in japan and oversee everything came in and did a review to be sure the same procedures used in japan are now put to use in the US rebuild facilities. I have more faith in the newer remans than the ones they offered for FDs, etc. That being said, i'd still rebuild my own, but if the dealership is paying for it, who cares.