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#3444532 - 08/03/14 08:57 AM frankenmixing OK?
Ed_T Offline

Registered: 08/03/05
Posts: 415
Loc: Taxachusettstan
Well now that the '12 CR-V is out of warranty, I plan on using up my stash of oils that are not 0W-20 in this vehicle. My latest OC was Valvoline 5w-30 full synthetic (SM) I had on the shelf and honestly, the engine is sooooooo much less clackety than with the M1. And fuel mileage has not suffered either. Kudo's to the M1 though, the AFE is excellent AFAICT and I will likely return to using it once these are consumed.

What I got left is some:
QS full syn 10w-30

5W-30 dino's:
Havoline Deposit Shield
Citgo syn blend
Pennzoil YB

So whatcha all think, once I get down to odd quarts, will it be be alright to mix away, where it seems all the oils claim compatibility with other oils? Or is there danger lurking in the add-pack mixtures?

#3444540 - 08/03/14 09:10 AM Re: frankenmixing OK? [Re: Ed_T]
sicko Offline

Registered: 09/22/08
Posts: 1666
Loc: Virginia
It's not ideal, but it shouldn't be an issue.

Your bumper to bumper warranty is done, but isn't your power train warranty still going?

#3444553 - 08/03/14 09:22 AM Re: frankenmixing OK? [Re: Ed_T]
Mr Nice Offline

Registered: 09/12/04
Posts: 15402
Loc: Orlando, FL
Mix away all you want, no harm will happen.
2007 Civic EX
2006 Accord SE
2005 RSX base
2005 Civic LX

#3444554 - 08/03/14 09:23 AM Re: frankenmixing OK? [Re: Ed_T]
Bandito440 Offline

Registered: 02/13/12
Posts: 2732
Loc: The County of Dr. Moreau
Mix it all together and run it for 5,000 miles.
'13 Forester 2.5X 5MT - NAPA 0w-20 & Wix 57830
'97 R1100GS - RL 20w-50, KN-163, Shockproof Heavy

#3444555 - 08/03/14 09:23 AM Re: frankenmixing OK? [Re: Ed_T]
Ed_T Offline

Registered: 08/03/05
Posts: 415
Loc: Taxachusettstan
63k miles // commuter x 2 drivers

#3444567 - 08/03/14 09:36 AM Re: frankenmixing OK? [Re: Ed_T]
Danh Offline

Registered: 10/16/10
Posts: 917
Loc: Illinois
Honda specs 0w/20, which is only possible with a full synthetic or blend. Maybe this is all for fuel economy purposes or maybe, just maybe, Honda thinks this engine needs at least a synthetic blend.

If you had a bunch of synthetic or SynBlend 5w/20 on the shelf, using it should be risk-free. But going to a) 5/10w/30, b) conventional, c) mixture of oils of d) questionable age seems a bit much. You've got a nice car, why risk anything in the interest of saving a few bucks?

#3444585 - 08/03/14 10:01 AM Re: frankenmixing OK? [Re: Danh]
fdcg27 Offline

Registered: 09/25/09
Posts: 11285
Loc: OH
The K24 had no more than dino 5W-20 recommended for it for years.
This is not a picky engine.
12 Accord LX 36K PP 0W-20
09 Forester 67K PU 5W-30
02 Accord 144K GOil 5W-30
01 Focus ZX3 112K M1 5W-20
95 BMW 318iC 152K Defy 10W-40

#3444603 - 08/03/14 10:18 AM Re: frankenmixing OK? [Re: Ed_T]
Kuato Offline

Registered: 10/23/05
Posts: 4193
Loc: 100km south of the border
No issues with mixing, but IMO use the 10wxx in hotter months only.
Amsoil user.

13 F150, 5.0, 37k
04 Wrangler, 2.4, 193k

Stop nit picking for crying out loud.

#3444619 - 08/03/14 10:42 AM Re: frankenmixing OK? [Re: Ed_T]
earlyre Offline

Registered: 11/22/11
Posts: 2955
Loc: Lima, Ohio, USA
OP - see the Frankenbrew link in my sig.
09 Mercury Sable : 6qts Motorcraft blend 5w20, Motorcraft Fl-400s
Mine to Maintain:
03 Pontiac Vibe : 4.5qts GC 0w30, Fram XG4967