What happens when different oils are used? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

HKrpS13 · 02-27-2004, 11:32 AM

The other night I was doing an oil change on my friends 240SX and my friend made a mistake and got 3 quarts of 10W-30 and 1 quarts of 10W-40 and I found this out after I've put in the oil. Should my friend drain and fill it up with 4 quarts of the same oil or it's not a big deal?
By the way, What does the numbers stand for?

autobahNESSA · 02-27-2004, 04:44 PM

Quote:

Originally Posted by HKrpS13

The other night I was doing an oil change on my friends 240SX and my friend made a mistake and got 3 quarts of 10W-30 and 1 quarts of 10W-40 and I found this out after I've put in the oil. Should my friend drain and fill it up with 4 quarts of the same oil or it's not a big deal?
By the way, What does the numbers stand for?

Its fine
thier both the same weight
10w(weight) 30/ 40 has to do with temperature differences from what I remeber.

you'll be fine untill your next oil change.

HiPSI · 02-27-2004, 05:14 PM

no problem with mixing, your engine will mix it all together nicely, lol

HKrpS13 · 02-27-2004, 06:30 PM

thanks for your help. saved me from getting dirty.
what if the numbers on the _W was different?

pr240sx · 02-27-2004, 07:17 PM

You can safely mix all kinds of weights, no engine seizure or malfunction will occur
But dont make this mistake too often,
Now, mixing different brands with different weight could cause a problem. Some oil companies add additives and detergents that could break down harmfully in your engine.

But in case of emergency, different oil is better than no oil at all!!

Replicant_S14 · 02-27-2004, 07:24 PM

it's 10W-37.5

Custom blend. I like it.

02-27-2004, 11:32 AM	#1
HKrpS13 Zilvia Member Join Date: Dec 2001 Location: SoCal Posts: 267 Trader Rating: (0) Feedback Score: 0 reviews	What happens when different oils are used? The other night I was doing an oil change on my friends 240SX and my friend made a mistake and got 3 quarts of 10W-30 and 1 quarts of 10W-40 and I found this out after I've put in the oil. Should my friend drain and fill it up with 4 quarts of the same oil or it's not a big deal? By the way, What does the numbers stand for?

02-27-2004, 05:14 PM	#3
HiPSI Zilvia Junkie Join Date: Oct 2003 Location: Buford, GA Posts: 522 Trader Rating: (0) Feedback Score: 0 reviews	no problem with mixing, your engine will mix it all together nicely, lol __________________ SR motor set/clip $2500+, FMIC kit $700+, Downpipe $100+, 3" exhaust $500+, Misc install parts $100+, Shop labor for install $1000+ and you still only make 220rwhp for $5000 so what's so CHEAP about the SR swap again?

02-27-2004, 07:24 PM	#6
Replicant_S14 Zilvia Junkie Join Date: Jul 2002 Location: Cabbagetown Posts: 467 Trader Rating: (0) Feedback Score: 0 reviews	it's 10W-37.5 Custom blend. I like it. __________________ Rules of Boozing #10: Do not make eye contact with the bartender if you do not want a drink.

02-27-2004, 06:30 PM	#4
HKrpS13 Zilvia Member Join Date: Dec 2001 Location: SoCal Posts: 267 Trader Rating: (0) Feedback Score: 0 reviews	thanks for your help. saved me from getting dirty. what if the numbers on the _W was different?

02-27-2004, 07:17 PM	#5
pr240sx Zilvia Addict Join Date: Jan 2002 Posts: 627 Trader Rating: (0) Feedback Score: 0 reviews	You can safely mix all kinds of weights, no engine seizure or malfunction will occur But dont make this mistake too often, Now, mixing different brands with different weight could cause a problem. Some oil companies add additives and detergents that could break down harmfully in your engine. But in case of emergency, different oil is better than no oil at all!!