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Oil for supercharged Silverado #4465862
07/21/17 08:16 AM
07/21/17 08:16 AM
Joined: Jul 2017
Posts: 11
NH
Thetruck454 Offline OP
Thetruck454  Offline OP

Joined: Jul 2017
Posts: 11
NH
I have a 2015 Silverado with the 6.2. Owner's manual calls for 0w-20. For the first time instead of the truck motors being based off the corvette(or vice versa) the 6.2 in the truck is identical to the long block the C7 corvette. The corvette owners manual says to run 5w-30 for normal use or for track use run 15w-50.

Now for the kicker, my truck is supercharged and puts around 500 horsepower to the wheels. I'm trying to settle on an oil since my motor is under a lot more stress than the typical truck motor.

Since I live in the northeast, and my truck is a DD, it will regularly see cold starts below freezing in the winter.

I'm leaning towards using mobile 1 0w-30(though it's not dexos approved). Will this be a good compromise for cold weather starting , yet better protection when I regularly exercise all the horses.

I've looked up the oil specs on four different mobile 1 oils below, but I don't quite understand them enough. Could someone educate me or tell me if I'm on the right track in selecting 0w-30?

https://mobiloil.com/en/motor-oils/mobil-1/mobil-1-advanced-fuel-economy#0W-20

https://mobiloil.com/en/motor-oils/mobil-1/mobil-1-advanced-fuel-economy#0W-30

https://mobiloil.com/en/motor-oils/mobil-1/mobil-1#5W-20

https://mobiloil.com/en/motor-oils/mobil-1/mobil-1#5W-30

Re: Oil for supercharged Silverado [Re: Thetruck454] #4465874
07/21/17 08:28 AM
07/21/17 08:28 AM
Joined: Oct 2010
Posts: 4,934
Midwest
volk06 Offline
volk06  Offline

Joined: Oct 2010
Posts: 4,934
Midwest
Mobil 1, not mobile 1 smile

With that engine and power, I'd be running Castrol Edge, Mobil 1, or Pennzoil Platinum 0w-40, if you're not concerned about it being DEXOS approved. All three are easily obtainable and ~$25 or less for 5qts at walmart and amazon (when they price match).

The 0w-30 does have a good dose of PAO but it does have lower amounts of anti-wear additives.
This chart compares all the mobil 1 oils and the phosphorus and zinc levels.
https://mobiloil.com/~/media/amer/us/pvl/files/pdfs/mobil-1-oil-product-specs-guide.pdf


2011 F-150 Ecoboost
2012 Focus S
2001 Taurus
Re: Oil for supercharged Silverado [Re: Thetruck454] #4465875
07/21/17 08:31 AM
07/21/17 08:31 AM
Joined: Mar 2008
Posts: 6,086
South Florida
bubbatime Online shocked
bubbatime  Online Shocked

Joined: Mar 2008
Posts: 6,086
South Florida
0W40 synthetic from Mobil or Castrol


17 Chrysler Pacifica Edge Syn 5W30
13 Yamaha XT250 Valv MC 10W40
10 Acura TSX 2.4 SuperTech Syn 5W20
06 GMC Sierra SuperTech 10W30


Re: Oil for supercharged Silverado [Re: Thetruck454] #4465876
07/21/17 08:31 AM
07/21/17 08:31 AM
Joined: Oct 2009
Posts: 3,947
Ohio
L_Sludger Offline
L_Sludger  Offline

Joined: Oct 2009
Posts: 3,947
Ohio
Does your supercharger get its oil supply from the engine? That should play into your decision if its the case.


too many cars and oil combinations to list in 150 characters or less
Re: Oil for supercharged Silverado [Re: Thetruck454] #4465890
07/21/17 08:45 AM
07/21/17 08:45 AM
Joined: May 2009
Posts: 12,487
N.H, U.S.A.
ARCOgraphite Online content
ARCOgraphite  Online Content

Joined: May 2009
Posts: 12,487
N.H, U.S.A.
What does the SC mfg recommend? Of the top of my head for cheap Id say BMW spec ACEA A3/B4 to start Like Motul XMAX 5w30. If things get a bit clacky after a few romps then jump to a Porsche A40 spec oil. Other than that your looking at redline 30 grades or other competition oils.


2019 VW Jetta S,6M OCI#0 2103mi-Castrol Edge Prof? VW508+OE Filter; '17 Subaru Crosstrek CVT OC#6 43467mi-Valvoline Adv 0w20 + SOA Filter
Re: Oil for supercharged Silverado [Re: ARCOgraphite] #4465991
07/21/17 10:14 AM
07/21/17 10:14 AM
Joined: Jul 2017
Posts: 11
NH
Thetruck454 Offline OP
Thetruck454  Offline OP

Joined: Jul 2017
Posts: 11
NH
Mobile vs Mobil, haha yup, autocorrect got me!

The supercharger has it's own self contained oil supply, and the manufacturer has nothing to say about what to use in the engine. I installed it myself so I don't have a engine builder to consult.

For my understanding, why the recommendation for 0w-40? Wouldn't that be on the thick side for an engine designed for 0w-20/5w-30?

As far as not caring for dexos, since my warranty is toast, I figured it didn't matter, is that a mistake?

Re: Oil for supercharged Silverado [Re: Thetruck454] #4465997
07/21/17 10:18 AM
07/21/17 10:18 AM
Joined: Jun 2011
Posts: 1,838
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline

Joined: Jun 2011
Posts: 1,838
Crawfordville FL
Synthetic 5w-30 like M1 ESP or PP 5w-30 or regular M1 5w-30


The oem has to recommend the grade of oil they tested with to get their EPA rating. Since the corvette is low volume it doesn't really impact their CAFE average and they recommended 5w-30 for better protection of an engine that makes that density of power. They sell a bunch of trucks so they had to squeeze out every MPG they could. It's the same engine. Run the 5w-30, especially if you are going to work the engine and use all those horses.


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Oil for supercharged Silverado [Re: Thetruck454] #4465999
07/21/17 10:21 AM
07/21/17 10:21 AM
Joined: Oct 2015
Posts: 2,932
Balearic Islands , Spain
FordCapriDriver Offline
FordCapriDriver  Offline

Joined: Oct 2015
Posts: 2,932
Balearic Islands , Spain
Shell Rotella T6 5W-40, i think it's still API or atleast JASO rated so it's good for Gas engines.


1975 Ford Capri II Ghia 3000 V6, - Shell Helix HX3 20W-50 w/ 20% Rimula R4X 15W-40 HDEO.
1988 Ford Escort XR3i Cabrio, - Shell Rimula R4X 15W-40, w/ 30% Helix 3 20W-50.


Re: Oil for supercharged Silverado [Re: Thetruck454] #4466000
07/21/17 10:22 AM
07/21/17 10:22 AM
Joined: Mar 2008
Posts: 6,086
South Florida
bubbatime Online shocked
bubbatime  Online Shocked

Joined: Mar 2008
Posts: 6,086
South Florida
Look, 500 horsepower to the wheels WITH a supercharger, dont even think about using a 30 weight. Anyone in this thread recommending a 5W30 weight (rolls eyes) has absolutely no knowledge of high horsepower applications.

Feel free to use 5W30 if you want a spun bearing.

Id start at Mobil 0W40 and go from there.

40 weight oils are not scary monsters to be afraid of.


17 Chrysler Pacifica Edge Syn 5W30
13 Yamaha XT250 Valv MC 10W40
10 Acura TSX 2.4 SuperTech Syn 5W20
06 GMC Sierra SuperTech 10W30


Re: Oil for supercharged Silverado [Re: bubbatime] #4466011
07/21/17 10:36 AM
07/21/17 10:36 AM
Joined: Dec 2009
Posts: 26,901
Regina, Saskatchewan, Canada
Garak Offline
Garak  Offline

Joined: Dec 2009
Posts: 26,901
Regina, Saskatchewan, Canada
Originally Posted By: bubbatime
Look, 500 horsepower to the wheels WITH a supercharger, dont even think about using a 30 weight. Anyone in this thread recommending a 5W30 weight (rolls eyes) has absolutely no knowledge of high horsepower applications.

There are thicker 5w-30 options that could be suitable, with elevated HTHS, but they're going to be a little more difficult and/or costly to find. I'm thinking Castrol 5w-30 A3/B4, Rotella T6 Multi-Vehicle 5w-30, Red Line 5w-30, Delvac 1 LE 5w-30, that sort of thing. Compared to an ordinary A3/B4 on the shelf like M1 0w-40, though, in a sensible container size at a sensible price, that's another matter altogether.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: Oil for supercharged Silverado [Re: Thetruck454] #4466042
07/21/17 11:10 AM
07/21/17 11:10 AM
Joined: Oct 2010
Posts: 4,934
Midwest
volk06 Offline
volk06  Offline

Joined: Oct 2010
Posts: 4,934
Midwest
Originally Posted By: Thetruck454
Mobile vs Mobil, haha yup, autocorrect got me!

The supercharger has it's own self contained oil supply, and the manufacturer has nothing to say about what to use in the engine. I installed it myself so I don't have a engine builder to consult.

For my understanding, why the recommendation for 0w-40? Wouldn't that be on the thick side for an engine designed for 0w-20/5w-30?

As far as not caring for dexos, since my warranty is toast, I figured it didn't matter, is that a mistake?


You state the long block is the same as the corvette, that can use 15w-50 in racing applications. This engine was not "designed" only for 0w-20 / 5w-30. If you look many of the engines used in the US that use Xw-20/30, they use much thicker oils, like 10w-40 in other countries. This "myth" of the engine was designed for this oil and the "tighter" tolerance is mostly false. Lighter oils are used strictly for fuel efficiency.

0w-40 is recommend because it is one of the best "compromise oils" out there, its got a great additive package, not horribly thick for 40wts (most shear to 30w anyway when in service) but also flows well in almost any temperature. 40wt oils also have higher Zinc/Phos limits which helps with the high performance demands.


2011 F-150 Ecoboost
2012 Focus S
2001 Taurus
Re: Oil for supercharged Silverado [Re: Thetruck454] #4466049
07/21/17 11:20 AM
07/21/17 11:20 AM
Joined: Oct 2009
Posts: 3,947
Ohio
L_Sludger Offline
L_Sludger  Offline

Joined: Oct 2009
Posts: 3,947
Ohio
I agree with using a good, robust oil within the factory viscosity specification,
AND
used oil analysis.

FWIW when I supercharged my former V8 Lexus LS400 with a Vortech V2, which itself got its oil fed by the motor - I didn't worry about a 'thin' viscosity oil at all. I believe I used 5w30 Mobil 1.

When I turbocharged my former 86.5 Supra, I used German Castrol 0w30, the green stuff - it was magnificent and the motor AND turbo loved it.


too many cars and oil combinations to list in 150 characters or less
Re: Oil for supercharged Silverado [Re: bubbatime] #4466159
07/21/17 01:06 PM
07/21/17 01:06 PM
Joined: Jul 2016
Posts: 1,799
Jacksonville, FL
FlyNavyP3 Offline
FlyNavyP3  Offline

Joined: Jul 2016
Posts: 1,799
Jacksonville, FL
Originally Posted By: bubbatime
Look, 500 horsepower to the wheels WITH a supercharger, dont even think about using a 30 weight. Anyone in this thread recommending a 5W30 weight (rolls eyes) has absolutely no knowledge of high horsepower applications.

Feel free to use 5W30 if you want a spun bearing.

Id start at Mobil 0W40 and go from there.

40 weight oils are not scary monsters to be afraid of.


I've probably built or dyno tested over 200 engines at double or triple this power level on a Xw30 oil. No reason to be worried about a 30 oil in this application. Plenty of supercharged camaro engines living long lives on 5w30 making 600 whp.

I would probably run a Mobil 1 0w40 year round though.

To the OP your engine is different in many ways from the Corvette engine but no worries. The stock 6.2 internals are really really tough.

Running any good 5w30 or 0/5w40 will be sufficient year round. My pick for ease of locating and purchase would be M1 0w40 used with a Fram Ultra filter.


Luke
P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander
Re: Oil for supercharged Silverado [Re: Thetruck454] #4466240
07/21/17 02:15 PM
07/21/17 02:15 PM
Joined: Aug 2009
Posts: 3,928
Pittsburgh,PA U.S.A.
JimPghPA Offline
JimPghPA  Offline

Joined: Aug 2009
Posts: 3,928
Pittsburgh,PA U.S.A.
Castrol 5W-50 would be my choice for that application. The 5W will give you great cold weather start up flow, and the 50 will provide good protection when you step on that throttle.


Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa

Re: Oil for supercharged Silverado [Re: Thetruck454] #4466286
07/21/17 03:12 PM
07/21/17 03:12 PM
Joined: Dec 2002
Posts: 1,639
North Carolina
Rat407 Offline
Rat407  Offline

Joined: Dec 2002
Posts: 1,639
North Carolina
Doesn't the new 2017 ZL1 Camaro with 650hp spec a dexos1 5w-30?


2002 Silverado 5.3 0w-20 AMSOIL
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