Gave M1 yet another chance only to disappoint...

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Mobil 1 0w40 is fine in my Mercedes which is what it is speced for. I'm not sure why you'd be mad at it when it isn't even speced for the car that you put it in. It's not supposed to be magic oil that works great in every single car.
 
If they told you wolverines would make good house pets, would you believe them?

Originally Posted By: Merkava_4
So in addition to Mobil 1 5w30 and 10W-30 causing noise, this is the first report of 0W-40 causing noise ?

This is awesome; what an excellent way to start a new year.
smile.gif


Mobil 1 Noise
 
Originally Posted By: racin4ds
I'm sure I'll catch some flaming from the M1 fans all over this site but I just recently tried my 3rd and final OCI with an M1 product and once again I have been let down. This time I tried the infamous 0W40 in my wifes Explorer Limited with the 4.6l V8, not until M1 did it ever have any start up noise/rattle and when hot at idle it had a very pronounced "knock" (likely timing chain tensioner noise and nothing serious but still) Same Motorcraft FL820S filter is always used so it wasn't that.

I put some Motorcraft 5W30 in it this OCI and its quiet as a mouse again. I have tried M1 oils in my F150 and my Honda cars and always found it made my engines noisy.

Anyone else find this or is it just me? Sorry Mobil, I'm done. If its noisy it can't be good...
Sounds like you found a winner, & cheaper than the M1 as well. Ford modulars, especially 3V cam phaser ones, are not usually the quietest engines around! I've heard of people running up to 20W50 in them trying to quiet the rattle down.
 
As others have mentioned already, you've jumped to a grade that is not recommended by the manufacturer. If this is like my 2002 4.6L in my Lincoln Continental, it was originally designed in the 1991-2000 years to be a 5w30 vehicle. Ford back spec'd most of their 4.6L vehicles in 2001-2002 to the 5w-20. I don't believe 40 grade is ever a choice. But if you have a well worn, high mileage engine in a very hot climate, then maybe 40 grade could work. Don't blame M1 for using on non-approved grade oil. I'd bet M1 5W-20/30 would work just fine.

To be fair, now try a Ford 0w-40 grade oil and see if you don't get the same rattles you did on M1 0w-40. That would be the only legitimate test to properly rate the M1.
 
Originally Posted By: racin4ds


I put some Motorcraft 5W30 in it this OCI and its quiet as a mouse again. I have tried M1 oils in my F150 and my Honda cars and always found it made my engines noisy.

Anyone else find this or is it just me? Sorry Mobil, I'm done. If its noisy it can't be good...


+infinity. I had MC 5w30 for 1 OCI in my current DD (non vtec, VVT,no variable timing I believe 1995 YM, just prior to the previous OCI. In my previous daily driver, I used the 5w-20 exclusively (the accord v6, see sig) and the oil just felt slicker by the seat of the pants and doled out FEs like it was christmas. I tried that so called awesome M1 and it was more noisy than anything else I couldn't see but that noise and the much publicized FE or iron spikes have me running for the hills as far as Mobil 1 is concerned.
 
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Originally Posted By: 06VtecV6
Originally Posted By: racin4ds


I put some Motorcraft 5W30 in it this OCI and its quiet as a mouse again. I have tried M1 oils in my F150 and my Honda cars and always found it made my engines noisy.

Anyone else find this or is it just me? Sorry Mobil, I'm done. If its noisy it can't be good...


+infinity. I had MC 5w30 for 1 OCI in my current DD (non vtec, VVT,no variable timing I believe 1995 YM, just prior to the previous OCI. In my previous daily driver, I used the 5w-20 exclusively (the accord v6, see sig) and the oil just felt slicker by the seat of the pants and doled out FEs like it was christmas. I tried that so called awesome M1 and it was more noisy than anything else I couldn't see but that noise and the much publicized FE or iron spikes have me running for the hills as far as Mobil 1 is concerned.


Are you capable of contributing anything remotely useful and based on something somewhere in the proximity of reality?
 
Originally Posted By: 06VtecV6
"...much publicized FE or iron spikes have me running for the hills as far as Mobil 1 is concerned.


In what industry respected publication? Or are you citing forum noise?
 
I've never noticed any difference in noise in any car with any oil. I guess I'll have to break out the dB meter. Oh wait, I have laundry to do.
 
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Originally Posted By: totegoat
My engines run quietly, but I don't own any Fords.


^This. Maybe 0W-40 is just a bad choice for your engine too.
 
Originally Posted By: SlipperyPete
0W30 AFE made a lot of top end noise in our old Subaru until it warmed up, but 0W20 EP doesn't make any noise in my wife's RAV 4.


Subarus in general made a lot of top end noise.
 
I've owned 5 of the 4.6L Ford/Merc/Lincolns from 1987-2015. Never once used a Motor Craft oil in any of them, or any vehicle for that matter. They were always quiet. Does that imply that MC is a "noisy" oil?
 
Another stellar post by you, chock full of technical details and irrefutable logic.

Thanks.

Originally Posted By: 06VtecV6
+infinity. I had MC 5w30 for 1 OCI in my current DD (non vtec, VVT,no variable timing I believe 1995 YM, just prior to the previous OCI. In my previous daily driver, I used the 5w-20 exclusively (the accord v6, see sig) and the oil just felt slicker by the seat of the pants and doled out FEs like it was christmas. I tried that so called awesome M1 and it was more noisy than anything else I couldn't see but that noise and the much publicized FE or iron spikes have me running for the hills as far as Mobil 1 is concerned.
 
I'm not an M1 swinger but any chance that colder mornings are attributing to this new found noise? My cammed LS engine sounds a little less like a sewing machine on M1 Ow40, compared to the last fill of PP 5w30. I've heard various types of noises from modular Ford engines over the years, I've owned 3 of the quad cam variety.
 
Originally Posted By: R80RS
I've had multiple runs of M1 5w-20 in the F-150 in my sig line (4.6L) with no discernible difference in sound. I've also run Motorcraft, PU, and the current Amsoil, all 5w-20, in this engine and can't tell the difference between them.

I thought Ford specified 20 weight oils for that engine. Is 40 weight oil approved for your Explorer Limited? The high viscosity may have more to do with the difference in sound than the brand of the oil.

I knew that one would be coming when I read the post. Always follow your owners manual!! (Although I don't with no negative results).
 
I just want to say I own three Fords and The Lincoln 4.6 runs the absolute quietist with the best fuel mileage on 10w30. I have run 5w20, 5w30 , 10w30 and currently the Ford FX2 has 0w40 Mobil 1 in it and sounds quieter than it did with Castrol 5w20 Synthetic in it. I bought into that hogwash about the 5.4 requiring 5w20 due to being oil specific like they claim the Dodge MDS is. Its Bull. My buddy has the Charger with the MDS and it runs the same with 5w30 as does 5w20. This follow the owners manual stuff drives me insane. The same motors spec thicker oil in other countries. The same motors spec thicker oil in racing and performance. Look at the Performance Hemis and Mustang 4.6s. 0w40 would be the chosen oil if it wasn't for CAFE. I am not saying 5w20 will kill your motor, but I am saying a magnitudes of other oil grades wont either.
 
The OP posted a few months ago. What happened? He stated the M1 0-40 was very quite in his Ford. He posted this on 9-23-15.
 
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Originally Posted By: tig1
The OP posted a few months ago. What happened? He stated the M1 0-40 was very quite in his Ford. He posted this on 9-23-15.


Good memory!
 
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