quick question, mixing engine oil?
#1
Evolving Member
Thread Starter
quick question, mixing engine oil?
Hi guys,
I just wanted to see what ya'll take on mixing engine oil is. i have heard mixing brands and end weight is bad (eg. mobil 1 5w30 and castrol 10w60) ..
but what about mixing 5w40 castrol edge and 0w40 castrol edge (hence both end weight is the same).
would this be okay?
thanks in advance !
I just wanted to see what ya'll take on mixing engine oil is. i have heard mixing brands and end weight is bad (eg. mobil 1 5w30 and castrol 10w60) ..
but what about mixing 5w40 castrol edge and 0w40 castrol edge (hence both end weight is the same).
would this be okay?
thanks in advance !
#4
EvoM Guru
iTrader: (1)
As long s the 2nd number is the same, you're fine. The first number comes from the amounts of a couple of additives they put in the oil, and will just average out if you mix a 0w40 and a 5w40. When the second number is different, the actual base stock is different, and it's not advisable to mix..
#6
Evolving Member
Thread Starter
atm im using castrol edge 5w40 and i still had a few qrts of 0w40 left from my previous change. my next change im going with different brand completely but im only mid way point through the interval and i was 0.5 qtr down so thought i'd jst top it up with the 0w40 and then change after the appropriate interval.
i was also jst concerned cos the 5w40 apparently is a grp3 full synthetic while the 0w40 is known to be grp4 ?
anyways, thanks for ur input guys ~
i was also jst concerned cos the 5w40 apparently is a grp3 full synthetic while the 0w40 is known to be grp4 ?
anyways, thanks for ur input guys ~
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