i was thinking of mixing my GC w/ a 20 wt oil......i have a f150 5.4 l and the GC hasnt fared well in them, but if i were to mix it w/ 20 WT............ A) would it work
B) would i gain anything by doing it
C) what would be the recommended mix......
It might work, although given that GC is a heavy 30wt, since your Ford probably calls for 5w20, I'd mix maybe 1/4 GC with the rest 5w20 (synthetic Mobil 1 or Castrol, I assume?). That would leave it a heavy 5w20, perhaps close to a 5w30. You might gain from slightly quieter operation and less shearing. I'd probably mix it with another Group IV like Mobil 1 before I'd mix it with a Group III like American Castrol Syntec
I thought methylcrylate was cement used to adhere artificial joints. Methacrylate and its many derivitives are used to make glue and plexiglass. Does Fuchs use a methacrylate-based polymer as their base oil?
Just FYI, Castrol advised me to NOT mix 0-30 GC with their Syntec X-20 weights, because they said the two oils were too different from one another. That's the response I got from an email I sent to them...I don't know what level of understanding the person writing to me has about these two oils.
Last oil change, I mixed:
Four quarts of 0W-30 GC (green) with;
Two quarts of 5W-40 BC.
All is well, and I will do this every summer until my stash of BC is gone. (Use only GC in the winter). Once its gone, I will stay with GC year round.
BTW, I have been mixing oil (use whatever I have laying around) for years, and never had a problem. By law, all oils must be able to mix. If they could not mix, what would you do when you find you are a couple quarts low when checking your oil at a gas station while on a trip. They all have to mix.
Right now, my GoldWing has:
Two quarts of 15W-50 M1;
One quart of 10W-40 Motul E-Tech;
One quart of 10W-40 AmsOil.
Again, this is not the way I want to do it but I just use what I have laying around. Next oil change on the Wing will be:
Two quarts of 20W-50 RedLine;
One quart of 10W-Motul E-Tech and;
Don't know what I'll use as the last quart as I don't have anything else just laying around other than my GC and BC.
I think Castrol said that because if you're mixing a heavier weight with a 5w20 then you are not using your vehicles spec'd oil.
Therefore they don't want to get in trouble telling someone to mix the different grades, my guess anyway.
Really doesn't make sense, oil is oil, you can't go wrong really mixing similar weights, brands.
Just FYI, Castrol advised me to NOT mix 0-30 GC with their Syntec X-20 weights, because they said the two oils were too different from one another.
Wonder if that could be what my sodium problem was here:
Otherwise the UOA was excellent.