Uh Oh, I put Mobil 1 High Mileage In A New Engine

[69sixpackbee]

As the title says, I put in Mobil 1 High Mileage in my newly rebuilt Toyota 3.4. I broke it in with 5W30 dino oil and an EOS and just changed it and not until I realized that I goofed and got the High Mileage instead of the straight Mobil 1 5W30. Should I be concerned? Is it advisable to dump it and swap in the correct one? I feel like a total boob Guess I should have read the friggin' label BEFORE I put it in! I've only put about 500 miles since then. Thanx! Bud

 

[MolaKule]

Quote:

Should I be concerned?

No.

 

[Bgallagher]

Wouldn't sweat it.

 

[Quattro Pete]

Call your insurance company. They'll probably total it.

 

[CarbonSteel]

Originally Posted By: MolaKule

Quote:

Should I be concerned?

No.

x2 - carry on.

 

[BrocLuno]

So... Why be concerned... Some of the hot-rod boys run HM from the get go on a new rebuilt engine. They like the add pak

 

[3800Series]

A little bit more protection while wearing the motor in I guess. Nothing to be worried over tho.

 

[Bud]

You or the engine will never know the difference.

 

[JMJNet]

You should be concerned because the engine actually have souls and it knows what you put in there. April's Fools. LOL!!!

 

[901Memphis]

It's got a higher treat rate of seal conditioners and more anti wear additives, some would argue it's a better oil than API SN synthetics and I might agree.

 

[Arctic388]

OMG - i would be worried. its a Toyota! just kidding. not really. lol seriously, you even got the weight the same, you have absolutely ZERO to worry about concerning the oil.

 

[LeakySeals]

Yes it has seal swellers. But they won't take effect for 10000 miles. So you will have dumped the oil by then I assume. Other than that it's a really good break in oil IMO

 

[Oro_O]

Originally Posted By: 901Memphis

It's got a higher treat rate of seal conditioners and more anti wear additives, some would argue it's a better oil than API SN synthetics and I might agree.

Or step up the protection a notch. Bud, if you really care about the motor, you could drop the 5w-30 M1 HM and pour in some 10w-30 M1 HM. It's still SL, with lots more protective goodies in it and an HTHS of 3.5!

 

[901Memphis]

Originally Posted By: Oro_O

Originally Posted By: 901Memphis

It's got a higher treat rate of seal conditioners and more anti wear additives, some would argue it's a better oil than API SN synthetics and I might agree.

Or step up the protection a notch. Bud, if you really care about the motor, you could drop the 5w-30 M1 HM and pour in some 10w-30 M1 HM. It's still SL, with lots more protective goodies in it and an HTHS of 3.5!

The 5w20 and 5w30 were SL last I checked, but the 10w30 does have the higher HTHSV

 

[HTSS_TR]

You need to re-register with California DMV as a salvaged car.

 

[asker123]

Originally Posted By: LeakySeals

Yes it has seal swellers. But they won't take effect for 10000 miles. So you will have dumped the oil by then I assume. Other than that it's a really good break in oil IMO

So you want to say that the seal swelling only start to work after 10000 miles after poring a high milage oil in an engine? How do you know this? I have heard that the reason high mileage oil should not be put in a normal engine is that it will swell the seals so you have to allways use the high mileage oil going forward...

 

[Oro_O]

Originally Posted By: 901Memphis

The 5w20 and 5w30 were SL last I checked, but the 10w30 does have the higher HTHSV

Oops, you're right. The 10w-40 HM is SN (which annoys me, I want that in SL). The 5ws are indeed still SL. I keep trying to figure out why they make it SN but can't come up with a reason. The 10w-30 is also A3/B3, but that's probably only because of the HTHS; 3.5 being the floor for that cert I think. I really like that oil.

 

[gfh77665]

It will probably cause a massive explosion that will blow the hood up off its hinges and at least 50 feet into the air.

 

[69sixpackbee]

I had a thought. Seriously, I have always used M1 in my wifes '04 Dodge Stratus and it is due for an oil change. Maybe I will just do a transfusion of this oil in her car and put fresh M1 in my truck. All I know is the Mobil 1 is great stuff and I figure I cant go wrong whichever way I go. Thanx!

 

[Quattro Pete]

Originally Posted By: Oro_O

Originally Posted By: 901Memphis

The 5w20 and 5w30 were SL last I checked, but the 10w30 does have the higher HTHSV

Oops, you're right. The 10w-40 HM is SN (which annoys me, I want that in SL). The 5ws are indeed still SL. I keep trying to figure out why they make it SN but can't come up with a reason.

The reason is very simple. API SM/SN imposes restrictions on additive levels for all Xw-20 and Xw-30 grades. The Xw-40 grades are not subject to such restrictions. That's why M1 HM 10w-40 can claim API SN compliance despite having the same add pack as M1 HM 10w-30.