Recent Topics
Forgot Oil cap - Should I sample?
by meborder
02/27/17 04:31 PM
Cheap Effective Charcoal Lighter
by sleddriver
02/27/17 04:06 PM
Need something to mow 2.4 acres
by skyactiv
02/27/17 03:51 PM
Oil FAQ introduction thread somewhere?
by Dumc87
02/27/17 03:40 PM
AT Overfill causes higher pressure?
by Klutch9
02/27/17 03:18 PM
PUP replacement
by camb
02/27/17 03:14 PM
Possible advantage of high old viscosity oils
by DrRoughneck
02/27/17 03:12 PM
Determining Viscosity
by MolaKule
02/27/17 03:02 PM
2016 Honda Civic 1.5T TGDI..DILUTED!
by dblshock
02/27/17 01:17 PM
Kitchen Cabinets need painted
by Tdbo
02/27/17 11:57 AM
2014 Ram Limited Slip rear fluid?
by jaynissan12
02/27/17 11:25 AM
DELL W 8.1 not loading at start???
by daman
02/27/17 11:10 AM
Hankook Gets Serious About Winter Tires
by SubLGT
02/27/17 10:51 AM
Synthetic oil in an older car
by WyrTwister
02/27/17 10:45 AM
Pennzoil Platinum 5w-30, 12k OCI, Infiniti VQ37VHR
by SuperValue
02/27/17 10:23 AM
How thin / thick is too much from OEM specs?
by Ed_Flecko
02/27/17 10:12 AM
How are Ge appliances
by ram_man
02/27/17 10:11 AM
Easy Roller Dolly Car Jacks
by AirgunSavant
02/27/17 09:25 AM
Motorcraft semi syn wording
by double vanos
02/27/17 08:51 AM
Pentosin ATF 1 LV $2.50/liter + shipping
by Sam_Julier
02/27/17 08:41 AM
Newest Members
Seadub, joloo, anoilgirl, pepper4512, bordercity242
60667 Registered Users
Who's Online
99 registered (2oldtommy, Atesz792, asiancivicmaniac, AEHaas, Alfred_B, 97f150, 7 invisible), 2312 Guests and 13 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
60667 Members
66 Forums
261645 Topics
4316883 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 3 of 3 < 1 2 3
Topic Options
#3403052 - 06/21/14 02:00 PM Re: is 0W-20 always better for mpg than 5W-20? [Re: yvon_la]
OVERKILL Offline


Registered: 04/28/08
Posts: 33129
Loc: Ontario, Canada
Originally Posted By: yvon_la
Could any explain to me why the majority of car maker say to use
5wxx ?how come almost all car maker never say 0wxx .what is wron with a 0wxx oil?is it an issue in the dino version?


Because it requires a synthetic and is more expensive. OEM's that generally aren't German usually don't make it a policy to spec (expensive) synthetic oil.
_________________________
2016 Durango Limited
2016 Grand Cherokee SRT

Top
#3403068 - 06/21/14 02:31 PM Re: is 0W-20 always better for mpg than 5W-20? [Re: virginoil]
CATERHAM Offline


Registered: 11/18/05
Posts: 10133
Loc: Burlington, Ontario, Canada
Originally Posted By: virginoil
Originally Posted By: CATERHAM
Jasper8146, as others have mentioned, your car is spec'd for the 5W-20 grade so in a warranty situation it is possible that you could be questioned as to why you're using a 0W-20.
Now if you're not concerned with that then yes you can use a 0W-20 and even the TGMO 0W-20 as a number of Hyundai/kia owners have with good UOA results. But be advised that TGMO is one of lightest 20 grade oils available so in your climate, since your car is not equipped with oil gauges to monitor things I'd suggest substituting a 1/2-1 quart of M1 0W-40 to give your a somewhat heavier 0W-20 oil. It will still be lighter on start-up than all 5W-20s and even most aftermarket 0W-20s, but it will retain a higher high temp' viscosity.


Why not promote the OP to find a ?w-20 oil with the appropriate builder approval. The OEM would quiver how freely it it is touted mix this with that to come up with what ?

Surely with the huge range oil of brands for selection in that grade you have in the USA, compared to OZ, there must be one on the shelf you can add with confidence in an unadulterated form straight out of the container.

Unbelievable from my view point in OZ.

Yes virtually every oil brand offers something in a 5W-20 and now the 0W-20 grade in NA but as I mentioned Hyundai/Kia don't spec' the 0W-20 grade just 5W-20.
The OP could use M1 0W-20 which Mobil states will not void any companies warranty when used when 5W-20 is specified but that's about it.
The OP inquired about using TGMO 0W-20 and is the reason for my response. If he was interested in something a bit heavier without blending, SynGard 0W-20 (220 VI, HTHSV 2.7cP) would be an option but it is not as readily available.
_________________________
74 Lotus Europa, 5W-50
86 Porsche 928S, TGMO 0W-20 25% / M1 0W-40 75%
96 BMW 328i, Idemitsu/TGMO 0W-20 70% / M1 0W-40 30%
94 Caterham 7, FUCHS 0W-20

Top
#3403541 - 06/22/14 06:02 AM Re: is 0W-20 always better for mpg than 5W-20? [Re: Jasper8146]
virginoil Offline


Registered: 09/05/05
Posts: 1581
Loc: western australia

Caterham the vehicle in question is a 2014 under warranty it puzzles me why in this instance you promote a mix this and that to get who knows what.

If the OP is off the mark I would expect an experienced BITOGer to inform the OP to follow OEM directions.

This is my view, like you have yours, and the longer I spend on this forum I am seeing the OEMs perspective clearer and clearer.
_________________________

Arriverdici e buona sera

Top
#3403608 - 06/22/14 08:22 AM Re: is 0W-20 always better for mpg than 5W-20? [Re: Jasper8146]
Cujet Offline


Registered: 02/15/03
Posts: 5860
Loc: Jupiter, Florida
I don't want to generalize with engines and climates I'm not familiar with.

However, here in hot and humid South Florida, thinner oils result in higher UOA wear metals, in my "fleet". Others have different results. I'm hard on things, it seems.
_________________________
Turbo's rule.

Top
#3404465 - 06/23/14 10:58 AM Re: is 0W-20 always better for mpg than 5W-20? [Re: Jasper8146]
jrustles Offline


Registered: 02/24/13
Posts: 2035
Loc: Ontario, Canada
So... is this a diesel engine we're all talkin about here?
_________________________
"No matter how paranoid or conspiracy-minded you are, what the government is actually doing is worse than you imagine" W.Blum

Top
#3423915 - 07/13/14 09:46 PM Re: is 0W-20 always better for mpg than 5W-20? [Re: Jasper8146]
Greasymechtech Offline


Registered: 07/11/14
Posts: 1544
Loc: Paradise of Florida
Whether under warranty or not is irrelevant.
For the most MPG, use any full synthetic 0w20.
You probably wont see the mpg difference when compared to a full synth 5w20.
When the transmission is due for service, use a full synth fluid there too.
_________________________
At what point should a lurker start posting :-)

Top
Page 3 of 3 < 1 2 3