Recent Topics
Bypass Setting Question
by threeputtpar
04/18/14 04:12 PM
G-Oil 5W-30 $2/qt @ La Habra, CA, WM
by NMBurb02
04/18/14 04:10 PM
Mobil one extended performance 0W-20
by Corollaman
04/18/14 04:02 PM
Drained Oil bubbles
by Ndx
04/18/14 03:57 PM
RP 20-820 opened
by 440Magnum
04/18/14 03:55 PM
Rotating Tires...cross vs straight front to back?
by Mark72
04/18/14 03:51 PM
My $50 snowblower
by sciphi
04/18/14 03:41 PM
Q for Machinist
by sleddriver
04/18/14 02:08 PM
TGMO or bulk 0w20?
by mdboulier
04/18/14 02:03 PM
Another take on lifetime fluid - BMW ZF
by CBR.worm
04/18/14 01:31 PM
New York Auto Show
by Papa Bear
04/18/14 12:56 PM
Amanda Todd case update - Man arrested
by OVERKILL
04/18/14 12:07 PM
Newest Members
potodds, rawd, zchen32, srkandel, LarryHill
49614 Registered Users
Who's Online
107 registered (147_Grain, 2oldtommy, 01_celica_gt, 123Saab, 1WildPig, 11 invisible), 1973 Guests and 227 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
49614 Members
64 Forums
212061 Topics
3323866 Posts

Max Online: 2551 @ 04/05/14 01:28 PM
Donate to BITOG

Topic Options
#2630524 - 05/18/12 11:03 PM Mixing motor oil
ForesterBill Offline


Registered: 05/18/12
Posts: 2
Loc: Arizona, USA
Is there a problem mixing different brands of motor oil in my car engine so long as the mixed brands are the same viscosity (5W30) and API service grade (SM) ?

Bill
2010 Subaru Forster


Edited by ForesterBill (05/18/12 11:07 PM)

Top
#2630525 - 05/18/12 11:03 PM Re: Mixing motor oil [Re: ForesterBill]
dave1251 Offline


Registered: 07/15/05
Posts: 5865
Loc: Maricopa, AZ
Mix away.
_________________________
make the inside of your engine oil cap white.
don't use.

Top
#2630530 - 05/18/12 11:08 PM Re: Mixing motor oil [Re: ForesterBill]
Quattro Pete Offline


Registered: 10/30/02
Posts: 23549
Loc: Illinoistan
Originally Posted By: ForesterBill
Is there a problem mixing different brands of motor oil in my car engine so long as the mixed brands are the same viscosity (5W30) and API service grade (SM) ?

Bill
2010 Subaru Forster

No problem. You can even mix different viscosity grades if you want.
_________________________
'02 530i (PU 5W-40)
'08 C300 4Matic (M1 0W-40)
'13 F700 GS (Spectro 15W-50)

Top
#2630556 - 05/18/12 11:53 PM Re: Mixing motor oil [Re: ForesterBill]
Zeus103363 Offline


Registered: 02/11/12
Posts: 166
Loc: Louisiana
Go for it. In one of my atv's, i have a mix of M1 4T 10w-40 (synthetic), valvoline 4T 10w-40 (dino), and shell rotells T4 10w-30 (HDEO). Runs great!
_________________________
Only on BITOG!

"Please don't use any words like factual or data.. You lost ANY credibility with members like me!

Amazing....

Top
#2630576 - 05/19/12 01:26 AM Re: Mixing motor oil [Re: ForesterBill]
hardcore302 Offline


Registered: 11/23/09
Posts: 2392
Loc: Suffolk County, NY
Do it up! Just have a general idea of what grade you want.
_________________________
2007 Ford Mustang GT - FL-820S filter
2008 Saturn Vue XR - STP filter
I'm a big synthetic blend advocate.

Top
#2630598 - 05/19/12 02:36 AM Re: Mixing motor oil [Re: ForesterBill]
Dumc87 Offline


Registered: 06/05/10
Posts: 100
Loc: Florida
I'm looking at Mobil1 15w50 for my Nissan 300ZX. Curious if I used 3qts 15w50 and topped it off with M1 extended performance 0w20.
_________________________
1998 Grand Cherokee lifted 6.5" - RIP

1990 Nissan 300ZX N/A Auto - Blue Azure Pearl

Top
#2630607 - 05/19/12 03:12 AM Re: Mixing motor oil [Re: Dumc87]
Gene K Offline


Registered: 01/25/03
Posts: 3127
Loc: Decatur AL USA
Originally Posted By: Dumc87
I'm looking at Mobil1 15w50 for my Nissan 300ZX. Curious if I used 3qts 15w50 and topped it off with M1 extended performance 0w20.


No such animal as 0W20 EP.

Would be:
14.95 cSt at 3/1 15W50/5W20EP
14.85 cSt at 3/1 15W50/0W20AFE

Basically is would be similar to a 40 Weight HDE0. Have you considered just buying a gallon of Shell Rotella T6 5W40 ($21) if you want a heavier 40 weight (compared to M1 0W40)?

Personally if you havnt tried it I think M1 0W40 would make an outstanding oil for that engine.
_________________________
Gene






Top
#2630718 - 05/19/12 08:54 AM Re: Mixing motor oil [Re: Gene K]
ForesterBill Offline


Registered: 05/18/12
Posts: 2
Loc: Arizona, USA
Thanks for the feedback. I'll keep mixing the leftover 0.9 quarts from those 5.1 quart jugs.

Top
#2630721 - 05/19/12 09:01 AM Re: Mixing motor oil [Re: ForesterBill]
bluesubie Offline


Registered: 08/04/03
Posts: 1765
Loc: NJ
This is ForesterBill mixing:

getdown

Also,
welcome

-Dennis
_________________________
'04 Subaru Forester 2.5XT
Motul X-cess 5W-40 | OEM Honeywell filter

Top
#2630849 - 05/19/12 12:30 PM Re: Mixing motor oil [Re: Gene K]
Dumc87 Offline


Registered: 06/05/10
Posts: 100
Loc: Florida
Yep, I definitely got that mixed up lol Sorry

I'm actually using T6 5w40 right now; seems to be working great! The oil is already a bit dark, so I'm sure it's been working on cleaning things up over the last 5-600 miles or so. Way too short of an oil interval, but I am curious to get something a tad lighter since I don't have a track driven twin turbo.

M1 0w40 has been recommended actually. Right now I'm trying to figure out some oils that may work from Motul (either 0w30 X-lite or 5w30 X-max seem to be the choice so far)

I am going to install an aftermarket oil pressure gauge soon, hopefully this week, so I may get the 0w40 M1 since it's readily available at Wal Mart.
_________________________
1998 Grand Cherokee lifted 6.5" - RIP

1990 Nissan 300ZX N/A Auto - Blue Azure Pearl

Top