Quote:
Originally Posted by gasser
50/1 is fine for a good SYNTHETIC OIL and may be ok for some synthetic blends but I wouldn't bet my motor on it especially since the blends don't tell you how much synthetic they blend with their natural (dino) oil. Synthetic oil holds up much better to heat than natural oil. No natural oil that I know of is designed to hold up to the heat that could be generated by running a motor wide open on a 50/1 ratio (more oil helps the motor run cooler). Oils are not the same they are a complex mix of various ingredients designed to meet various goals and should never be mixed at higher ratios than the oil manufacture designed them for.
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I agree hence "quality" and "synthetic".
I've used Putoline MX7 at 50:1 for over 5 years now without any problem that could be attributed to it.