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#3332072 - 04/03/14 08:54 AM Are there any bad oils?
Spetz Offline

Registered: 01/23/14
Posts: 211
Loc: Australia
Are there any bad oils which are best avoided?

I could imagine the really cheap oils are not very good, but what about any reputable brand oils which are best avoided?

And if there are such oils, what in particular makes them bad?
2003 Mitsubishi Diamante 6G74 3.5L. 5 Speed auto. 130,000 miles

#3332078 - 04/03/14 08:57 AM Re: Are there any bad oils? [Re: Spetz]
Quattro Pete Offline

Registered: 10/30/02
Posts: 29494
Loc: Great Lakes
Originally Posted By: Spetz
Are there any bad oils which are best avoided?

I don't know about Australia, but in the US, PQIA has identified some...

Use the "Consumer Alerts" dropdown for detailed info about what makes them bad.
'02 530i (PPE 5W-40)
'15 Q5 3.0T (Edge 5W-40)

#3332079 - 04/03/14 08:59 AM Re: Are there any bad oils? [Re: Spetz]
Flareside302 Offline

Registered: 01/06/13
Posts: 523
Loc: LaVergne, TN
in b4 oilchanger says valvoline.. even the NOACK issue with the 5w20 next gen isn't a turn away thing for me. just not preferable..

honest go off the PQIA chart and warnings.. they're pretty spot on..
92 Flareside Built 5.0, Built AOD, 3.55 gears. AMSOIL 0w30 SS (next: AMSOIL SS 10W30)
01 Honda CR-V B20 AWD AMSOIL ATM Sig Series 10w30

#3332083 - 04/03/14 09:03 AM Re: Are there any bad oils? [Re: Spetz]
larryinnewyork Offline

Registered: 02/10/12
Posts: 439
Loc: N.Y.
I don't buy ...... U.S.E.D. Oil
So it is written, so it shall be done.

2002 Ford Ranger
Engine: 6 Cylinder, 3.0 Liter
2 Wheel Drive

#3332086 - 04/03/14 09:06 AM Re: Are there any bad oils? [Re: Spetz]
supton Offline

Registered: 11/09/08
Posts: 6587
Loc: NH
3N1 oil?

Lots of oils I wouldn't add to my diesel. Doesn't make them bad, just not suited for the task.
2011 Toyota Camry, base, 6spd manual, 95k, hers
2010 Toyota Tundra double cab, 4.6L, auto, 98k, his

#3332126 - 04/03/14 09:45 AM Re: Are there any bad oils? [Re: Spetz]
Ken2 Offline

Registered: 12/02/02
Posts: 6357
Loc: Washington St.
any reputable brand oils which are best avoided?

The oils to be avoided are the brands you've never heard of, often sold in convenience stores to people that care only about low price and convenience.

The discussions here about which name brand oil to buy are akin to arguing over how many angels can dance on the head of a pin.
Every gun that is made, every warship launched..a theft from those who hunger and are not fed, those who are cold and not clothed.
Gen. Eisenhower

#3332205 - 04/03/14 11:33 AM Re: Are there any bad oils? [Re: Spetz]
NHGUY Offline

Registered: 10/09/11
Posts: 4178
Loc: USA
Bullet.(Not to be confused with the Steve McQueen Bullitt either)

#3332605 - 04/03/14 06:41 PM Re: Are there any bad oils? [Re: Spetz]
SilverC6 Offline

Registered: 10/03/08
Posts: 2454
Loc: Southeast
There are very few bad motor oils.

There are motor oils that offer more value for your money.

You can, as directed above, check here:

Also, look at some VOA/UOA's too.

On the nice list, dino Mobil 5000 and PYB come to mind.

QSUD offers the same value if a little longer OCI is desirable or you just want the "protection" of a synthetic.
'04 Mazda RX8 5W30 NAPA Syn
'10 &'11 Camry 5W-20 PU
'11 Landcruiser 5W20 PU
'13 BMW 550IX BMW 5W30
'08 BMW Z4M Coupe TWS 10W60
'13 BMW M6 BMW 5W30

#3332618 - 04/03/14 06:56 PM Re: Are there any bad oils? [Re: Spetz]
Realtech214 Offline

Registered: 02/01/13
Posts: 643
Loc: Florida
There are NO BAD API SN Oils, I think
2003 Suburban $1 kendall AZ score last year
2001 Suburban $1 Castrol
- - - - - - - - -- - - - - - - --
I Never thought i wold care about oil

#3332650 - 04/03/14 07:32 PM Re: Are there any bad oils? [Re: Spetz]
fdcg27 Offline

Registered: 09/25/09
Posts: 11065
Loc: OH
In Oz?
Who knows?
Any current spec (or last dozen or so years spec) oil from a reputable blender will be fine.
Any no spec oil from a blender you've never heard of might be fine as well, or it might not.
Generally, if you go with the names you've heard of, you'll never have a problem with the oil you use in your engines.
I'd only be wary of blenders I've never heard of that have no known spec for their offerings.
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 150K Defy 10W-40