Originally Posted By: jaydee
Originally Posted By: Char Baby
Typicaly, Syn oils have better flow for cold starting but, it also depends on how cold out it is!
At certain cold outside temps, oh let's say at zero deg F, they may both be the same, i.e. syn 5W30 vs. dino 5W30.
But when it gets really cold outside,(-20 or -30 deg F.) the way Minnesota can get, syn oils would be best. IDK how cold it can actually get in Minnesota but, living there, you might want to consider syn for the winter months just to eliminate the guess work.
Our coldest here this year in Rochester, NY IIRC, has been -7 deg F. Dino is fine! But, if we were to get as cold as some other places in the U.S. and Canada, I would run straight syn in the winter time. In the mean time, a blend works for me. My own blend of course...2 qts syn & 3 qts dino all 5W30
What brand do you use for your blend? I'm guessing it would be a no-no to mix brands?
Mixing brands and grades won't hurt anything. I've been doing it for 40 years. Just not as much today. But, this is another story.