Originally Posted By: FastSUV
Originally Posted By: aquariuscsm
Every car I`ve ever owned had run more quiet and responsive on dino. Plus every UOA I`ve seen here and on other sites always have way more wear metals on synthetic vs dino. I`ll never use synthetic in an engine anymore.
BUT,manual transmissions and rear diffs run much better on synthetics over dinos. That`s where imo synthetics belong,in transmissions and rear diffs.
WRONG...rear diffs like dino better...Currie Enterprises requires dino for their high-end rear diff warranties...syn in manual transmissions only unless it is needed for extended drain intervals
That's Currie Enterprises, and who knows what synthetic gear lube turned them off of synthetic gear lubes.
All I know is that I've put a LOT of miles on synthetic gear lubes and have never once had a rear diff failure. My current rear axle has been though 3 manual transmissionns too.
I've got a built Ford 8.8" in my that does great on RedLine 75W-90. Many new cars come factory filled with synthetic gear lubes, are run 150,000+ miles on the factory fill and
still usually never have a problem unless they developed a leak at some point.
Simply put, Currie is crazy.