Marvel Mystery oil??? to use or not to use in brand new diesel??

[Carterfamilyfarm]

2024 hd3500 duramax, does anyone have an opinion on putting marvel mystery oil in a brand new diesel to help fuel economy??
i have heard both some say use it right from the beginning some say dont use it on newer diesel engine.
let me know if you have experience with this product please.
thank you

 

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[pinebaron]

No but I just got the Hot Shots EDT Winter Defence the other day although have yet to use it.

 

[Carterfamilyfarm]

No but I just got the Hot Shots EDT Winter Defence the other day although have yet to use it.

ok thanks for that!

 

[gemarsh]

In your oil or fuel?

Don't put it in fuel tank. Your DPF won't be happy.

 

[Carterfamilyfarm]

In your oil or fuel?

Don't put it in fuel tank. Your DPF won't be happy.

yah i was asking for fuel thanks

 

[Mazie Dog]

yah i was asking for fuel thanks

I have been running it in my 2022 3.0 with no problems 11,000 miles

 

[Carterfamilyfarm]

I have been running it in my 2022 3.0 with no problems 11,000 miles

thank you!

 

[JimP]

what's the purpose and how much? (please)

 

[Carterfamilyfarm]

lubricity and fuel economy for longevity of the engine

 

[yzf1999]

For fuel mileage keep your foot out of it..for longevity use fresh fuel and do all the proper maintenance. Mystery oils have nothing to do with it.

 

[gemarsh]

The L5P will outlast the DPF, many times over, without needing MMO.

I'm a firm believer in MMO in certain instances. The emissions equipped diesel is not one. You don't have to listen to me, cause I don't believe half of the sh!t I say. But you might want to listen to the manufacturer, Valvoline.

I highlighted in sloppy yellow...

 

[gemarsh]

I don't know what sulfur will do to the high pressure pump, if anything. Or if GM is only required by the epa to say to use only ultra low sulfur diesel, like MMO...

 

[Carterfamilyfarm]

For fuel mileage keep your foot out of it..for longevity use fresh fuel and do all the proper maintenance. Mystery oils have nothing to do with it.

what interval do you change your oil i was going to do 6K

 

[Carterfamilyfarm]

The L5P will outlast the DPF, many times over, without needing MMO.

I'm a firm believer in MMO in certain instances. The emissions equipped diesel is not one. You don't have to listen to me, cause I don't believe half of the sh!t I say. But you might want to listen to the manufacturer, Valvoline.

I highlighted in sloppy yellow...

View attachment 6806

thank you!

 

[Carterfamilyfarm]

I don't know what sulfur will do to the high pressure pump, if anything. Or if GM is only required by the epa to say to use only ultra low sulfur diesel, like MMO...

View attachment 6807

appreciate the help! have a great day