Amsoil Question

[rwilliams]

I am considering switching from Shell Rotella 5w-40 Syn. to Amsoil. When I got some info. packets on Amsoil I noticed that they have some compairison charts that show Amsoil to be far better than other oil's, look's impressive until you look a little closer. I noticed that they only compaired their syn. oil to other dino oils. I called Amsoil and talked to a tech. rep. and asked for a apples to apples compairison with other syn. oils and he stated the studies had been done but could not be made public.
Sounds a little funny to me, dose anyone have any info. on how the syn. oils currently on the market compair to each other.

Thanks

Rich

[dbennett48]

That whole company is fishy. I am not going to promote Amsoil or demote Amsoil. You can argue that. I just would never buy any.

Dave

[rhonamitra]

I bought into their "marketing ploy" for the 6.0 oil and air filters and bought a set. I was duped, their oil filter is nothing more than the stndard Racor filter at twice the price and the air filter is the standard one also, but at a comparable price. As far as oil is concerned, the way these motors shear the oil I think syns probably last as long as the regualr dinos. My 10w-30 Rotella shears to 5w in just under 5000 miles.

[1999cobra]

[ QUOTE ]
I bought into their "marketing ploy" for the 6.0 oil and air filters and bought a set. I was duped, their oil filter is nothing more than the stndard Racor filter at twice the price and the air filter is the standard one also, but at a comparable price. As far as oil is concerned, the way these motors shear the oil I think syns probably last as long as the regualr dinos. My 10w-30 Rotella shears to 5w in just under 5000 miles.

[/ QUOTE ]

They operate like "Wieght Watchers" or "Mary Kay cosmetics" the whole insider / outsider deal I would seriously consider other alternatives... They try to sell thier oil like some people sell religion - stay clear...

[VIZARD]

[ QUOTE ]
I am considering switching from Shell Rotella 5w-40 Syn. to Amsoil. When I got some info. packets on Amsoil I noticed that they have some compairison charts that show Amsoil to be far better than other oil's, look's impressive until you look a little closer. I noticed that they only compaired their syn. oil to other dino oils. I called Amsoil and talked to a tech. rep. and asked for a apples to apples compairison with other syn. oils and he stated the studies had been done but could not be made public.
Sounds a little funny to me, dose anyone have any info. on how the syn. oils currently on the market compair to each other.

Thanks

Rich

[/ QUOTE ]

The last I read it is not CI-4 certified and it seems CI-4+ is better for the 6.0 anyway.

Good luck.

BTW: We are neighbors.

[refuse2]

The info I have read from them all there diesel oils are rated for CI+ and I believe on there web site they show some info comparing mobil one syn to amsoil and amsoil still showed on top but not by much if I'm not mistaken.

refuse2

[hitecdan]

I don't see the point of spending the extra money to buy a synthetic in the first place.

Check out fmtrvt oil study. He's a member on this site and has set up a data base of OA reports that members have been given him (he's doing the Lord's work).

Go to: http://members.aol.com/fmtrvt/OilStudy/ and open: 60current.pdf

From what I've seen there, Amsoil does not hold up any better to shearing then everything else. Report B025 uses an Amoil 15W-45. Viscosity is below baseline @ less the 5,000 miles.

[VIZARD]

[ QUOTE ]
The info I have read from them all there diesel oils are rated for CI+ and I believe on there web site they show some info comparing mobil one syn to amsoil and amsoil still showed on top but not by much if I'm not mistaken.

refuse2

[/ QUOTE ]

I would only suggest that you look upon their written words with caution.

An example statement would be: AMSOIL Synthetic Blend 15W-40 Diesel Oil is recommended in applications specifying the following....API CI-4+...

Recommeneded does not mean certified.

You may want to e-mail them and ask for their certification confirmation to be sure either way.

Just my personal opinion though.

[OT]

RW...Just following along, althou lots in archive. Sometimes these o. threads get heated up/sometimes not. So....

HTDan..
For sure. Jack's ssheet is sure worthwhile, tks.again J. [img]/ubbthreads/images/graemlins/smile.gif[/img] Have followed it for sometime now. So...

6L certainly does shear both syn. & dino. oils. Have you noticed wear levels for the most part are within acceptable levels even thou oil is shearing down? At least that's my take on it if I'm understading correctly what I'm reading. [img]/ubbthreads/images/graemlins/biggrin.gif[/img] Still trying to learn.

Point is...if wear levels are actually ok even w/shearing, seems normal long life for 6L is looking better, compared to early days when "shearing" was first noted/talked about. [img]/ubbthreads/images/graemlins/shrug.gif[/img]

[wingnut60]

hitecdan--
look at B039 in same study--conclusions?

[FamilyRide]

[ QUOTE ]
"I don't see the point of spending the extra money to buy a synthetic in the first place."

"From what I've seen there, Amsoil does not hold up any better to shearing then everything else. Report B025 uses an Amoil 15W-45. Viscosity is below baseline @ less the 5,000 miles."

[/ QUOTE ]

I use Amsoil, but I would also agree with that statement based on the shearing. My experience and oil analisys also agree wiht the shearing and milage.

[ QUOTE ]
"An example statement would be: AMSOIL Synthetic Blend 15W-40 Diesel Oil is recommended in applications specifying the following....API CI-4+...

[/ QUOTE ]

True for many of there oils. It's not cheap to go through the cert process (yep, it's not free) and in many cases I'm sure they know that something will change or sales won't warrant the cost so they do not spend the money. It's not a big deal.

If you want to spend the extra for synthetic, any of them are going to be about the same price I think. It cost me about $70 for 4 gallons of Amsoil and an Amsoil filter. I'm at over 5000 miles on the current oil and think I'll get an analisys dones now that it has some miles on it. I'm curious if the shearing has reduced.

If you'll notice, the oils that donot shear, are the ones that have moly. Analisys will even show a high level of moly. Is moly at those levels safe? Is it good for the 6.0? I can't answer that, but I'd sure like to know.

I need to change mine and i know I'll use an Amsoil filter, but I'm not sure about the oil this time. I may save some money and se how it goes, but I'll have this oil in it for the fall and into winter so we'll see.

[VIZARD]

I have no personal knowledge or experience with Amsoil itself so I wouldn't even attempt to speak of it's quality.

Those that like seem to love it. Those that hate it seem to be quite passionate about their feelings.

I just always have caution when smoke and mirrors pop up to market a product. Many people think their oils are API certified due to the language.

[FamilyRide]

[ QUOTE ]
I just always have caution when smoke and mirrors pop up to market a product. Many people think their oils are API certified due to the language.

[/ QUOTE ]

What smoke and mirrors and where its it "popping up" marketing their products. [img]/ubbthreads/images/graemlins/shrug.gif[/img]

And as for the language, it's very clear, it says it's certified if it is and it doesn't say it's certifed if it's not. They will say that what API cert's it meets, but never mislead in saying anything that would lead you to think it carries the certification.

This is just like the Rancho Branded shock issue. It's pretty clear and never says they are Rancho shocks. [img]/ubbthreads/images/graemlins/biggrin.gif[/img]

[VIZARD]

Personally, I would not want the potential waranty risk by using a non-API certified oil in an already oil sensitive engine.

You see truth, I see smoke and mirrors. I hope you have continued good luck with their product.

Safe trucking.

[dbennett48]

I could not agree more, Vizard.

Dave