I'm changing the old Jeep's Synchromesh manual transmission fluid today. It is an NSG370 transmission.
Advance Auto has Pennzoil Synchromesh for 9 bucks a quart. O'Reilly has Valvoline for 10 bucks a quart.
What does the hive say about which might be better gear lube? The price is close enough not to be a factor. Are they essentially the same? I'm guessing Pennzoil was probably the original Jeep factory fill, at least in more recent years, due to FCA's close relationship with SOPUS.
One other quick question...What is the recommended shelf life of Synchromesh? I may have a bottle of Pennzoil stashed somewhere that's probably 5 years old. (If I do, and the shelf life is ok, that will decide it in favor of Pennzoil.)
Advance Auto has Pennzoil Synchromesh for 9 bucks a quart. O'Reilly has Valvoline for 10 bucks a quart.
What does the hive say about which might be better gear lube? The price is close enough not to be a factor. Are they essentially the same? I'm guessing Pennzoil was probably the original Jeep factory fill, at least in more recent years, due to FCA's close relationship with SOPUS.
One other quick question...What is the recommended shelf life of Synchromesh? I may have a bottle of Pennzoil stashed somewhere that's probably 5 years old. (If I do, and the shelf life is ok, that will decide it in favor of Pennzoil.)