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  #1  
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Default Motor Oil Engineering Test Data: Facts, not Myths/ oils ranked

Motor Oil Engineering Test Data

Since it will take you days to read this independent compilation of data, facts, and tests, I'll skip to #64 in the rankings which is the #1 rated 20w50. Then you can see where your oil ranks in comparison.


64. 20W50 Valvoline VR1 Racing Oil, conventional = 97,677 psi
This oil claims high zinc/phos.
zinc = TBD
phos = TBD
moly = TBD
It was tested Summer 2019. The psi value above, produced by this oil, came from testing it at the normal operating water-cooled engine test temperature of 230*F, which put it in the OUTSTANDING Wear Protection Category. But, this oil is way too thick for most any water-cooled engine. However, it is ideal for air cooled engines, which cannot control their oil temperatures well. And it is popular with air-cooled Harley Davidson Motorcycle Owners. So, for their benefit, I also tested this oil at the much higher test temperature of 275*F.

At that elevated temperature, any hotter and thinner oil is expected to experience a drop in Wear Protection Capability. But, this oil only had a very small 3% drop in capability. And even at that elevated temperature, it produced 94,850 psi, which still kept this much hotter and thinner oil in the OUTSTANDING Wear Protection Category.

I also tested this oil to find out its onset of thermal breakdown, which was an impressive 285*F.
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Last edited by 60Gunner; 6 Days Ago at 06:35..
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Chew on this for a spell
http://www.pqiamerica.com/
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I run that Valvoline high mileage 5w30 in my 01 Bonneville 3.8. 197,000 miles and doesn't use a drop of oil. I should do a compression test on it some day. I can hardly see the oil on the dipstick its that clean.
Interestingly enough, it was one of the top rated oils of all in that motor oil engineering test.
In a test done by Amsoil on Harley oils, the Valvoline 4t conventional beat most of the synthetics it was pitted against including Amsoil in the 4 ball and Syn 3 in most tests. Gotta give Amsoil credit for being honest.
I've been using Valvoline oil in everything I've owned for as long as I can remember. It was an Indy in Madison who was president of the CC riders MC back in the early 90s when I had my `73XLH that really sold me on it tho. Sae50 in that.

I'll have to read more on that tomorrow George. My eyes are buggin' from reading a few hours on the one I posted.

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hoah! Really slams Mobil on this one for false advertising.




137. 5W30 Mobil 1 Annual Protection, API SN, GM dexos 1 approved, ACEA A1/B1, synthetic = 82,486 psi
zinc = TBD
phos = TBD
moly = TBD
This oil was tested Fall 2018.
I had resisted requests to test this oil ever since it was introduced, until now. That is because I did not want to have anything to do with the massive false promotion of this oil, with its ridiculously bogus claim that it can go 20,000 miles between oil changes. The truth is that this oil is intended only to maximize profits for Mobil. Its pricing was originally about $15.00 per quart, while Mobil 1’s other synthetic oils were priced at about $9.50 per quart. But, by the time this oil was tested here, its price had dropped by $3.00, to $12.00 per quart. The drop in price was apparently due to poor sales at the original $15.00 per quart price. Of course it is common knowledge that demand drives price in the marketplace.

I finally decided to test it at this time, because people who were gullible enough to fall for this oil’s false advertising, deserved to see Engineering test data that shows just how this oil actually performs, regarding wear protection capability, its onset of thermal breakdown point, and to understand why using this ridiculously long oil change interval is NOT in the best interest of their engine.

The claims and advertising for this motor oil are amazingly false, even for motor oil products which are famous for false advertising. On the bottle it says to change the oil at 1 year or 20,000 miles, whichever comes first, unless your vehicle is under warranty. In that case, it says to follow the manufacturer’s oil change recommendation. It also says their 1 year or 20,000 mile oil change recommendation is NOT for vehicles subjected to severe usage, such as racing, trailer pulling, hauling, commercial use, use in dusty conditions, or prolonged idling. So, the only thing left, is that they aim this oil at normal daily driver vehicles that are out of warranty.

The heavily promoted big claim that they push, about being able to use this oil for 20,000 miles, is disgracefully false. Mobil should be ashamed of themselves for this Marketing scam. By the time a normal daily driven street vehicle reaches 5,000 miles, even on well formulated synthetic oil, that oil is dark, dirty, contaminated, is becoming more and more diluted by fuel blow-by as time goes on, has been suffering some thermal breakdown deterioration, and fine abrasive wear accumulations and insolubles will have started to build-up, that are not pulled out by the oil filter. So, by that point, any motor oil is in definite need of changing. And by changing it at 5,000 miles, you will be doing what’s best for your engine, and you will also prevent any concerns about sludge formation. People who go much longer than a 5,000 mile oil change interval, just don’t understand the numerous technical reasons why extended oil change intervals are NOT a good idea for their engine, even if they use very expensive synthetic oil marketed as extended change interval oil. See my Tech Article 25 for more details.

This oil’s bottle also says that it is the ultimate full synthetic oil, and that it maximizes wear protection, both of which are laughably false, considering how poor it performed in my Engineering testing for wear protection. And the fact that in my overall testing, it is among the worst Mobil 1 oils regarding wear protection capability.

And to add insult to injury, the onset of thermal breakdown for this oil was at a very low and disappointing 235*F, which is among the very worst I’ve seen. Buyer beware, you can never trust motor oil Advertising to tell the truth.

Originally, I was just completely disgusted with their Marketing Scam about insane 20,000 mile oil changes. But, I had expected it to perform very well regarding wear protection capability and its onset of thermal breakdown. After all, they started out charging a WHOPPING 50% more for this oil. And most people would expect to get something special for such a high price. So, I was as SHOCKED as anyone, to see its pathetic performance regarding wear protection capability and thermal breakdown, when it is such a high priced and massively promoted newly formulated motor oil.

All in all, by the measures that count, this still overpriced oil is a very poor choice for any engine, when so many other far superior motor oils are readily available, that cost even less.


So far I've only come across 2 other 20w50 oils. One of them Royal Purple. Somewhere around 87,000psi making it good.

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I've used plenty of Mobil oil, and most of it that isn't pretending to be magic is actually pretty good oil. But most of it that I do use isn't priced like magic oil, so no reason to complain if it's not the best out there. My car really liked Mobil Super back when I could reliably find it, but I've since shifted over to the Valvoline MaxLife stuff mentioned earlier for that.

VR-1 is fantastic oil for anything air cooled though, no arguments there.
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Quote:
Originally Posted by sml1226 View Post
I've used plenty of Mobil oil, and most of it that isn't pretending to be magic is actually pretty good oil. But most of it that I do use isn't priced like magic oil, so no reason to complain if it's not the best out there. My car really liked Mobil Super back when I could reliably find it, but I've since shifted over to the Valvoline MaxLife stuff mentioned earlier for that.

VR-1 is fantastic oil for anything air cooled though, no arguments there.
Fall into the good category still. Doesn't seem too many 20w50s do.

160. 20W50 Mobil 1 V-Twin 4 Cycle Motorcycle Oil, API SJ, synthetic = 75,855 psi
zinc = TBD
phos = TBD
moly = TBD

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I would be cautious about taking anything 540 RAT propagates as "fact".

He is a untrained, self promoting expert. He's been booted off many forums for his nonsense. He uses a long discredited method of testing oil film strength.

Oil film strength as he "measures" it, is the only parameter he "evaluates" to determine how good an oil is.
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I take anything with a grain of salt but it does seem to correlate pretty well with other tests and UOAs and I'm far from the only one that's realized VR1 conventional beats out any synthetic it's tested against in an air cooled v-twin in traditional UOA tests and his thermal break down of it has been proven by other means.
He does state his method of testing doesn't simulate real conditions but rather worst case torture testing so to speak.
But then thermal breakdown is thermal breakdown and in the case of VR1 I've seen the same numbers in other tests.

I just found it interesting. I don't expect anyone to change oil because of it. I wouldn't. It just happens to make my choice shine once again and backs up what I've been saying for a long time about a misconception of synthetic vs. Dino. At least where vr1 is concerned.

But then Amsoil's own test shows Valvoline 4T standing above synthetics including Amsoil in wear tests. I give them credit for being honest. Won't see that from Exxon Mobil.

His review on running any oil 20,000 miles is spot on. Even 5000 miles is too much no matter what you're running. But again, even at high temps and 5000 miles the vr1 held up where synthetics didnt.

I guess what I'm saying is I wouldn't totally discount everything he says. Fruitcake or not.

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If its on the internet it must be true. LOL
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I run 20,000 miles with my Chevy Volt and the meter say I still have 25% more mileage for my next change. LOL
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