Amsoil Las Vegas Tax Cab Field Study

[buster]

Link

Very similar to the Mobil 1 study.

This study used Amsoil 0w20 and AMSOIL Signature Series ATF.

Quote:
Motor oil in the test vehicles was scheduled to be changed at a minimum of 900-hour intervals. The actual oil
change intervals of the vehicle reported in this study were 1,005 hours (approximately 15,000 miles).


Quote:
Note: Oil change intervals were determined using hours rather than miles due to excessive idling and lowspeed driving. In these conditions, hours of service provides a more accurate measure of the oil’s service life.
To illustrate the severity of service for the average motorist, 900 hours of total operating time is equivalent to
19,080 miles in city-driving conditions and 43,470 miles in on-highway conditions.

 

[tig1]

Link is not working for me.

 

[buster]

Works for me. Just go to their web page and click on performance tests. It's at the top.

 

[donnyj08]

link worked fine for me. the parts definitely still look new.

 

[Quattro Pete]

How many cars did they test? Was it just one?

 

[Kool1]

Is it my imagination, or do the heads appear varnished?

 

[LargeCarManX2]

Shusch....What happens in Vegas stays in Vegas!

 

[asharris7]

nice results

 

[Clevy]

So 0w-20 in a Las Vegas cab in that extreme heat and a long interval. I'm impressed.
I've always considered amsoil's SSO line the best extended drain oil out there,which makes the extra cost of it worthwhile however I would have to get uoa done to confirm that it can manage the extra mileage which is an added cost to me,and sort of a hassle.
And I've gotta admit I like changing my oil often. It gives me a chance to look at the magnetic plug for metal,smell the old oil for excess fuel etc.
I used amsoil's sso 5w30 for a couple years in my 99 chev silverado when I first got it,and was draining at 15000kms.
The oil came out absolutely black however I never noticed any problems.
I'm confident in amsoil and their products being top of the line,but for me it's a waste since I like working on my vehicles.
I'm impressed with this testing though. Results like this is important info for fleet managers. I could see running these kind of intervals saving a fleet money in maintenance even though the initial product cost is more.
Thanks for posting. Interesting indeed

 

[147_Grain]

I believe that this recent testing also resulted in Amsoil adding the "Signature Series" label to their Multi-vehicle ATF (formula remained the same and held-up better than expected).

 

[Stanley Rockafeller]

Very Impressive.

If I owned an auto trans car, i'd def. run this ATF!

 

[FowVay]

Why don't they ever do these severe tests with ice cold engines where start-up wear is supposed to be the greatest? That would seem to be where you'd get the most benefit if the fluid truly is a better lubricant.

Or, how about doing 60,000 mile drain intervals on vehicles operated on the autobahn where redline is encountered 50% of the time, fuel burn rates are at their highest, and heat generation is far great than sitting in the desert idling. Something that is averaging 14 mph for the duration of the test just doesn't seem that stressful to me?

I guess it served their purpose though.

 

[Clevy]

Originally Posted By: FowVay
Why don't they ever do these severe tests with ice cold engines where start-up wear is supposed to be the greatest? That would seem to be where you'd get the most benefit if the fluid truly is a better lubricant.

Or, how about doing 60,000 mile drain intervals on vehicles operated on the autobahn where redline is encountered 50% of the time, fuel buurn rates are at their highest, and heat generation is far great than sitting in the desert idling. Something that is averaging 14 mph for the duration of the test just doesn't seem that stressful to me?

I guess it served their purpose though.

So you consider an engine being run hard on the highway when there is constant airflow across the rad and through the engine compartment and all systems operating harder then sitting in the desert in 110f heat with the ac on idling,and vehicle at a complete standstill.
I'm really thinking about this and I think even though the autobahn engine may be working hard I think the cooling system should be more than enough to compensate however the desert engine not being able to cool itself by being in motion would be harder on everything in general,especially the oil since the ambient heat combined with the engine heat and no way to cool it.
Do any of our more educated(than me) members who actually know which situation is worse please comment. I'm genuinely interested on which scenario would be harder on the oil.
TIA

 

[KrisZ]

Prolonged high speed driving and I don't mean 70mph in 60mph zone, but autobahn type, which is 90mph and often 100+mph will raise the oil temperature much, much higher than any low speed, idle driving in the city, no matter how hot it is outside.

However I don't blame Amsoil for not testing for such conditions since NA doesn't have these types of highways anyway. However it would be nice if they also conducted a similar test in one of the northern cities with very cold winters. This way they would have all their basis covered from extreme heat to extreme cold.

 

[MIGT]

What about the crank and bearings?
Why was that not shown?

 

[racin4ds]

Ha! What a joke! Nothing critical was even shown! How about main bearings? Crank journals? Cylinder bores? Piston skirts?

Amsoil does it again with strategic trickery and marketing to fool the masses!

 

[demarpaint]

 

[dishdude]

This is pure marketing - to me the conditions in the desert are hard on rubber and plastic components, not the internal engine and transmission. If anything, the environment is easier on these components due to the lack of condensation that occurs from the dry air, and mild winters.

Amsoil, Bose, Omaha Steaks, Apple, Monster...

 

[Gabe]

Originally Posted By: Kool1
Is it my imagination, or do the heads appear varnished?


I don't know how that motor is on oil, but I have seen cleaner engines with twice the mileage.

 

[demarpaint]

Originally Posted By: dishdude
This is pure marketing - to me the conditions in the desert are hard on rubber and plastic components, not the internal engine and transmission. If anything, the environment is easier on these components due to the lack of condensation that occurs from the dry air, and mild winters.

Amsoil, Bose, Omaha Steaks, Apple, Monster...


IMO if you want to stress test something do it in a cold environment like under Arctic conditions. It seems most companies like to do their testing in the desert for some reason.