S A R C A S M. I use it. You're 100% correct in it being personal. My wife, who was a Chevron oil and lubricant rep for over 25 years and has the degrees and certifications that tells me she knows WAY more than I do laughs when I mention these oil threads. She would tell anyone if they were to ask, run whatever the hell you want if it meets spec for the application. She'd even tell you off the record you could probably dump any oil viscosity into your engine and get away with it. She would also tell you syn blends are a waste of money. If you enjoy changing oil every 3 or 4K don't blow the extra cash on synthetics. I use full synthetic, multiple brands,in all my motors and change it every 12k with 0.00 oil related problems in any motor I've ever had. I've had oil analyzed after use and it's never been close to being "bad". Anyone who runs big equipment or has a fleet of vehicles usually pays to test the oil instead of blanket changes every X amount of miles as its more cost effective. There's my reason why I do what I do.Originally Posted by opas ride
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