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M1 10W30 2015 Silverado 5.3L #4697570
03/17/18 12:36 PM
03/17/18 12:36 PM
Joined: Feb 2013
Posts: 718
Idaho Former FL
Realtech214 Offline OP
Realtech214  Offline OP
Joined: Feb 2013
Posts: 718
Idaho Former FL
Wel i finally tried some 30wt in my 2015 L83. Spec is for 0W20. The Mobil 1 5W20 ive been using is 8.9cst @100*C and the 10w30 is 10.1 so they are very close to eachother. There is no difference in how she runs. Very very slightly increased oil pressure. I would guess by the gauge on the dash maybe ~3-4 psi ? Almost identical though. Runs nice and quiet.

I believe the mobil 1 10W30 is a good choice for those wanting to run a 30wt in a 20wt specced vehicle as the viscosity is very close to a 20.

Who else is running a xW30 in these engines? 4.3 5.3 6.2
Thanks. Give it a try!


2015 Silverado Crew Cab 5.3 LT 120,xxx miles
2001 Suburban LT 145,xxx miles
- - - - - -
Re: M1 10W30 2015 Silverado 5.3L [Re: Realtech214] #4697585
03/17/18 12:51 PM
03/17/18 12:51 PM
Joined: Sep 2008
Posts: 3,933
Southeast Texas
gfh77665 Offline
gfh77665  Offline
Joined: Sep 2008
Posts: 3,933
Southeast Texas
Your 10w-30 in FL is likely the same as running 0w-20 in the northern US tier and Canada, for much of the year. 10w-30 works great on the Gulf Coast.

Re: M1 10W30 2015 Silverado 5.3L [Re: Realtech214] #4697606
03/17/18 01:15 PM
03/17/18 01:15 PM
Joined: Dec 2013
Posts: 2,293
Fort Worth, Texas
clinebarger Offline
clinebarger  Offline
Joined: Dec 2013
Posts: 2,293
Fort Worth, Texas
GM still specs 5w30 in the LT1 engines found in Camaro & Corvette.


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/Auto
Re: M1 10W30 2015 Silverado 5.3L [Re: clinebarger] #4697723
03/17/18 04:19 PM
03/17/18 04:19 PM
Joined: May 2004
Posts: 43
Poway, CA
code5coupe Offline
code5coupe  Offline
Joined: May 2004
Posts: 43
Poway, CA
Originally Posted By: clinebarger
GM still specs 5w30 in the LT1 engines found in Camaro & Corvette.

I.e. GM hasn't changed the oil spec for the old LT1 engines.

Re: M1 10W30 2015 Silverado 5.3L [Re: Realtech214] #4697760
03/17/18 04:56 PM
03/17/18 04:56 PM
Joined: Jul 2015
Posts: 4,630
Down Under
SR5 Offline
SR5  Offline
Joined: Jul 2015
Posts: 4,630
Down Under
Quote:
The Mobil 1 5W20 ive been using is 8.9cst @100*C and the 10w30 is 10.1 so they are very close to eachother

I agree, they are very close in operational viscosity.
I've used a Euro A3 rated 30 grade oil that had an operational viscosity of 12.2 cSt at 100C (Castrol Magnatec 5W30 A3/B4). So your M1 10W30 is closer to the previous M1 5W20 than my Magnatec 5W30 A3/B3.

Your logic is good, grades are coarse, there is better detail looking at the actual measured viscosity values.

Quote:
Your 10w-30 in FL is likely the same as running 0w-20 in the northern US tier and Canada

Yep somebody short tripping in a Canadian winter on a 20 grade, is most likely using a thicker oil than I am driving through the outback in summer on a 30 grade or even a 40 grade.

We know cars can handle different oil grades, simply because they can handle different climates and driving styles.


Castrol GTX Ultraclean 15W40 A3/B3 + Wesfil-Cooper Z154
Re: M1 10W30 2015 Silverado 5.3L [Re: Realtech214] #4697789
03/17/18 05:31 PM
03/17/18 05:31 PM
Joined: Feb 2011
Posts: 873
N. Georgia Mtns
Sierra048 Offline
Sierra048  Offline
Joined: Feb 2011
Posts: 873
N. Georgia Mtns
Is this vehicle spec'd for a Dexos oil? Not that I care since I'm thinking on using a 10W30 myself here in Georgia.


2014 Nissan Frontier
2014 GMC Sierra 1500
Re: M1 10W30 2015 Silverado 5.3L [Re: Realtech214] #4698009
03/17/18 08:46 PM
03/17/18 08:46 PM
Joined: Sep 2004
Posts: 101
South La
passgas55 Offline
passgas55  Offline
Joined: Sep 2004
Posts: 101
South La
2007 chevy w/t 4.3 v6 rolling on 210000 by the end of next week. My first oil change 10 years ago was 10/30 and that grade is all this truck knew. If I bought a new chevy that spec 0/20 as soon as it comes out of warranty it would be either a 5/20 or a 10/30. I live in south Louisiana so I do not see a use for a zero as the first number in my oil.

Re: M1 10W30 2015 Silverado 5.3L [Re: Sierra048] #4698087
03/17/18 09:51 PM
03/17/18 09:51 PM
Joined: Feb 2013
Posts: 718
Idaho Former FL
Realtech214 Offline OP
Realtech214  Offline OP
Joined: Feb 2013
Posts: 718
Idaho Former FL
It is. I saw that the M1 10w30 viscosity was almost the same as the xW20 that is spec. I like it so far!

For some reason a 30wt in this truck make me feel a little more warm and fuzzie.


2015 Silverado Crew Cab 5.3 LT 120,xxx miles
2001 Suburban LT 145,xxx miles
- - - - - -
Re: M1 10W30 2015 Silverado 5.3L [Re: Realtech214] #4698142
03/17/18 10:40 PM
03/17/18 10:40 PM
Joined: Jan 2018
Posts: 534
San Antonio, TX
das_peikko Offline
das_peikko  Offline
Joined: Jan 2018
Posts: 534
San Antonio, TX
Originally Posted By: Realtech214
Runs nice and quiet.


That's all that matters right there.


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