0w-40 for everything

[CheezWhiz]

I get tired of buying jugs and quarts of different oils for different vehicles to get about the right amount for each. I'm wondering whether I can just run 0w-40 Mobil 1 for all of these, just buy jugs and clear out some shelf space:

2016 6.0 vortec 2500hd with 105k miles
65 GTO 505 cid pontiac v8 with mild hydraulic roller
1997 jeep tj 4.0 with 220k miles
1972 k10'with mild flat tappet 396
2007 subaru outback with 4 cyl non turbo and 110k miles
brand new toyota 4runner

currently have all but the toyota and looking to trade subaru in on 4runner in year or two.

Are there any applications on this list where Mobil 1 0w-40 is genuinely a bad choice? I realize there may be incrementally better choices for individual vehicles, but if I run M1 0w-40 in all of these, am I really risking anything?

 

[RooflessVW]

Yes, a 0W-40 would cover your bases well.

 

[buster]

Definitely. Good choice too.

 

[kschachn]

Are there any applications on this list where Mobil 1 0w-40 is genuinely a bad choice? I realize there may be incrementally better choices for individual vehicles, but if I run M1 0w-40 in all of these, am I really risking anything?

I’d say my concern would be an application where I do not want a full SAPS oil.

 

[tblt44]

I would not use it on the 65 or 72.

 

[dnewton3]

Yes - you can run 0w-40 for all; obviously not optimized for any one application.
Yes - you are risking a loss of fuel economy, if that matters to you, in the more modern engines.
Yes - there are other single grades that could do just as well, such as 5w-40 or 5w-30.
Yes - you've been here since 2008 and should already know these things.

 

[SubieRubyRoo]

I agree with buster & dnewton3, if one were simply looking for an oil that could protect nearly every modern gasoline engine, the Mobil 1 Euro 0w40 is probably as close as you can get, and it’s available in nearly every store that sells oil as anything more than an afterthought.

 

[kschachn]

I would not use it on the 65 or 72.

That makes no sense.

 

[buster]

I’d say my concern would be an application where I do not want a full SAPS oil.

True. It's too bad Supercar 0w40 isn't readily available bc that to me is the perfect all-around oil.

SA .8
HT/HS 3.5
cSt@100C - 12.9

 

[Brons2]

I wouldn't use it on a brand new 4Runner while it was under warranty. Once the warranty expired, yes.

 

[Bill7]

I get tired of buying jugs and quarts of different oils for different vehicles to get about the right amount for each. I'm wondering whether I can just run 0w-40 Mobil 1 for all of these, just buy jugs and clear out some shelf space:

2016 6.0 vortec 2500hd with 105k miles
65 GTO 505 cid pontiac v8 with mild hydraulic roller
1997 jeep tj 4.0 with 220k miles
1972 k10'with mild flat tappet 396
2007 subaru outback with 4 cyl non turbo and 110k miles
brand new toyota 4runner

currently have all but the toyota and looking to trade subaru in on 4runner in year or two.

Are there any applications on this list where Mobil 1 0w-40 is genuinely a bad choice? I realize there may be incrementally better choices for individual vehicles, but if I run M1 0w-40 in all of these, am I really risking anything?

The guaranteed HTHS of all 40 weight oils is HTHS >= 3.5 as per the SAE API specs which should provide you with optimal wear protection. Also the thicker oil would reduce any oil burning if you have any.
The Mobil 1 0W-40 has the most cleaning abilities of any Mobil oil, so that should definately be a plus.

The only question mark for me would be the brand new Toyota 4runner.
If it has the Dynamic Force Atkinson style engine you may want to check what viscosities it'speced for in Europe / Australia, as I'm not familiar with that engine.

Personally, I have no plan to ever use 20 weight or thinner oils in any of my vehicles.
Ford realized that 20 weight oil's couldn't protect the Ford timing chains well enough, and Ford specs 5W-30 for many of their new vehicles.

My view is that if it were not for CAFE, the optimal oil viscosity for most vehicles would have been 5W-30.
5W-30 viscosity oils is the only viscosity I plan to use in all my current and future vehicles due to it's stronger HTHS / MOFT.

 

[kschachn]

Grade is not an issue for any vehicle he listed.

 

[PWMDMD]

This is my plan for my three NA PFI vehicles as well as my lawnmower, snowblower, and generator.

Keeping it simple…grade and full-saps aren’t a problem with any of these applications so why not?

 

[RooflessVW]

I would not use it on the 65 or 72.

Why

 

[atikovi]

Why

I'm guessing flat tappet cam and lifter wear with the 0 weight.

 

[Shel_B]

I’d say my concern would be an application where I do not want a full SAPS oil.

Perhaps you could explain the pros and cons of a full SAPS oil. Would such an oil be acceptable for an older Camry or newer DI engines?

 

[I<3oil]

I'm running M1 0W-40 in my 6.0l and haven't had any issues. Will continue to run 0W-40 in it.

 

[SubieRubyRoo]

I'm guessing flat tappet cam and lifter wear with the 0 weight.

The winter rating has absolutely zero impact on engine operation or protection. It simply means the oil remains pumpable at cold temps.

 

[SubieRubyRoo]

Perhaps you could explain the pros and cons of a full SAPS oil. Would such an oil be acceptable for an older Camry or newer DI engines?

If the oil is not getting into the combustion chamber, full SAPS is not a concern. If the engine is consuming large quantities of oil, a full-SAPS oil will kill the cats quickly; low-SAPS would still consume oil but not poison the cats as quickly.

 

[atikovi]

The winter rating has absolutely zero impact on engine operation or protection. It simply means the oil remains pumpable at cold temps.

For it to be pumpable, it has to be thinner, no?