M1 afe vs toyota 0w20

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I seem to be stuck between these 2 oils partly due to availability. i live in Indianapolis so there mayyy be 1-4 days where it gets below 0F, during the summer high 90's is not uncommon. Will the extra moly in the Toyota oil provide any extra protection the M1 cant? Would the difference in the cold thickness really make any difference at these temps?
 
No and No. However I have never used Toyota oil, but M1 0-20 is out standing in both Duratechs even in the very hot temps we had this last summer. I now have 5K on this OC in the Fusion and will be making a trip to Florida in two weeks on this OC. 10K OCIs is a snap with this oil.
 
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Moly is just another anti-wear additive like boron, zinc, phosphorus, and ZZDP. If it has lower Moly, it usually has a higher level of the other anti wear additives.

The 0w vs 5w or 10w only helps with cold temp starting and lower wear on the engine initially, I would go with m1 0w20 over the Toyota oil if I had to choose between the two.
 
The M1 oil has a lower MRV @ -40 degrees but the Toyota oil is about 35% lighter at 32F. I don't know a what point the M1 0W-20 becomes lighter than the Toyota oil but I'm sure it's well below below 0F. And since you're only seeing 1-4 days below 0F a year, the Toyota 0W-20 is clearly the better winter oil choice for your climate.

Of course the race oil level of moly that the Toyota oil contains is there to maximize fuel economy, the fact that it does it by reducing friction during boundary lubrication is a bonus. So yes in that sense it provides a extra level of protection.
On the other hand the M1 oil has a higher HTHSV but since the Toyota oil is spec'd for your car, you don't likely need the higher HTHS viscosity.

So on balance I think the Toyota Brand 0W-20 is the preferred choice for year round use.
 
Originally Posted By: Mark_Walk
I like the M1 because it is thicker and is more readily available.


Thicker, as in the technical since?
 
Originally Posted By: CATERHAM
The M1 oil has a lower MRV @ -40 degrees but the Toyota oil is about 35% lighter at 32F. I don't know a what point the M1 0W-20 becomes lighter than the Toyota oil but I'm sure it's well below below 0F. And since you're only seeing 1-4 days below 0F a year, the Toyota 0W-20 is clearly the better winter oil choice for your climate.

Of course the race oil level of moly that the Toyota oil contains is there to maximize fuel economy, the fact that it does it by reducing friction during boundary lubrication is a bonus. So yes in that sense it provides a extra level of protection.
On the other hand the M1 oil has a higher HTHSV but since the Toyota oil is spec'd for your car, you don't likely need the higher HTHS viscosity.

So on balance I think the Toyota Brand 0W-20 is the preferred choice for year round use.
the fuel economy thing was another reason i was debating using it, probably wouldn't be any noticeable difference in mpg between the two though right?
 
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Originally Posted By: Brenden
Moly is just another anti-wear additive like boron...

I keep reading that on this site, but can't find any evidence that it is an anti-wear additive. Do you have a link to any info on this?

I know moly is, and my vote goes to the Toyota 0W-20 for now. Although I'm still collecting UOA data for my application.
 
Originally Posted By: tig1
No and No. However I have never used Toyota oil, but M1 0-20 is out standing in both Duratechs even in the very hot temps we had this last summer. I now have 5K on this OC in the Fusion and will be making a trip to Florida in two weeks on this OC. 10K OCIs is a snap with this oil.
part of the reason i was debating between the two was from reading your posts about your luck with it. i like how you just hop in a convo where people may be bad mouthing m1 and you say my engines have made it 400k no problems... always thought that was a good way to look at it
 
Originally Posted By: river_rat
Originally Posted By: Brenden
Moly is just another anti-wear additive like boron...

I keep reading that on this site, but can't find any evidence that it is an anti-wear additive. Do you have a link to any info on this?

I know moly is, and my vote goes to the Toyota 0W-20 for now. Although I'm still collecting UOA data for my application.



Here is an sentence from http://www.carbibles.com/additives.html

It's worth noting again the differences between anti-wear additives and extreme pressure additives: Anti-wear such as zinc and boron layer on the metal surfaces and attempt to keep the metals apart, finding applications in sliding actions like pistons and bearings. Extreme pressure additives such as sulphur phosphorus react to the metal surface making it harder and less subject to wear, such as on gears and cam lobes.
 
The moly supplier, Adeka Sakura-Lube, that EOM uses in the Toyota Brand oil that they formulate, claims a 1.7% fuel economy savings due to the moly additive alone.
The much higher VI and lower HTHSV of the Toyota oil has got to worth another 2% as well. So that's 4% right there and 4% is a lot!

Having said that, if you can measure a 4% fuel economy improvement; that's 1.5 mpg on a car that averages 40 mpg, you're a better man than me.
But just knowing that the Toyota oil is more fuel efficient, whether you can notice it or not, is another reason to use the oil.
 
Originally Posted By: The Critic
In this example, Toyota 0w-20 is free at the 10k and 20k service visits.
do not assume the dealer will use it because that might not be the case, my dealer uses valvoline products including 0w20... im not trustworthy enough to take advantage of my free maintenance unfortunately , seen too many dealer employees with no respect for anything
 
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It seems like Toyota is greatly encouraging their dealers to switch to the Toyota oil program, because a lot of my local dealers have recently switched exclusively to the Genuine Toyota labeled oil.

My dealer uses Toyota 0w-20 synthetic in bottles, as I could see from the big glass window in the service drive where I watch them perform the services.
 
Originally Posted By: The Critic
It seems like Toyota is greatly encouraging their dealers to switch to the Toyota oil program, because a lot of my local dealers have recently switched exclusively to the Genuine Toyota labeled oil.

My dealer uses Toyota 0w-20 synthetic in bottles, as I could see from the big glass window in the service drive where I watch them perform the services.
wish i had a dealer with a glass window you could watch from, ive never been in a dealer where the service customers are seated even remotely near the service bays let alone close enough to see anything through a window
 
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