Amsoil

[510man]

I wouldn't run Amsoil in my lawnmower if it was free.

The bearing parts in the pic are from a Suburban pinion bearing. The damage to the race is in the one spot. The damage to the bearing carrier goes all the way around. I'm hard pressed to believe the oil in the diff didn't have something to do with the failure when the part is submerged in a bath of said oil. Further, this truck has an aftermarket diff cover that allows the diff to hold almost a gallon of oil to help with heat and lubrication.

The diff oil used when the factory oil was serviced out? Amsoil!

 

[Floep]

If it only was not so exsesivly expensive.!! try buying it in Canada

 

[Buzzcut]

I don't believe that is oil related imo. There was a small imperfection and no matter what was in that diff damage was already done. the damage grew larger with use and time. Late model GM pinion bearings seem to fail quite a bunch.

I wouldn't run Amsoil in my lawnmower if it was free.

The bearing parts in the pic are from a Suburban pinion bearing. The damage to the race is in the one spot. The damage to the bearing carrier goes all the way around. I'm hard pressed to believe the oil in the diff didn't have something to do with the failure when the part is submerged in a bath of said oil. Further, this truck has an aftermarket diff cover that allows the diff to hold almost a gallon of oil to help with heat and lubrication.

The diff oil used when the factory oil was serviced out? Amsoil!

View attachment 194587

 

[16WhiteYukonIA]

I have AMSOIL in my 2017 Sierra Denali Ultimate, 6.2L. Have used it for over 25 yrs. Ran it in my 2012 Denali and every GM vehicle dating back to the 1980's. I also use it in my 2016 Polaris RZR 900 and my 2017 John Deere X738 tractor. I change oil once a year which equates to about 15,000 miles. I have NEVER changed oil sooner than that Only the best in my vehicles, I never cheapen out. I saved all whole lots of money over the years on needless oil changes.

AMSOIL has been producing synthetic oil since 1972. It could arguably be said they started it all. Everyone thinks Mobil 1 was first but they came circa 1974. AMSOIL is made in the USA, Superior, Wisconsin.

This is what I use, 100% synthetic ►

Thanks for the feedback. I'm planning on changing the oil once a year in my Yukon as well which my wife only drives 10-12k miles per year, so that'll easily stay within Amsoil recommended 25k mile range. What time of year do you typically change your oil? Looks like we both live in areas with snow, cold, etc.

 

[RED TAHOE LS]

Just today I was watching a program about a " BARN FIND " up in New England states, pertaining to old concourse cars. This particular one had been setting in this barn since 1949, ESTATE protected, big money. While watching, over on a shelf was a bottle of AMSOIL, been around a long time. The car in question was a 12 cyl, forgot the name.

David g......

 

[RED TAHOE LS]

I don't believe that is oil related imo. There was a small imperfection and no matter what was in that diff damage was already done. the damage grew larger with use and time. Late model GM pinion bearings seem to fail quite a bunch.

Your opinion sounds good but not necessarily true. Pinion bearings are ruined by the young inexperienced so called mechanics at the quick lube fast service shops that exist today. I know your wondering how I know this, I use a local reputable shop to rotate/balance my tires and brakes. Two years ago, they called me to tell me my pinion seal was leaking, not a big cost, gave the go ahead because I trusted them. I have not been back, the idiot that worked on my original Tahoe had no clue that there is a " CRUSH SLEEVE " that HAS to be changed anytime the yoke comes off, it sets the preload on the bearings. Last year I finally had to replace pinion bearings as well as carrier bearings, to the tune of $741.00. I took it to a REAL MECHANIC, 40 YRS IN SAME BUILDING. @ 76, i miss my younger days, I could do almost anything, was taught the right way.
Moral of this story, STAY AWAY FROM QUICK SERVICE PLACES, you will thank me someday, Good Day.
David g............

 

[olyelr]

I wouldn't run Amsoil in my lawnmower if it was free.

The bearing parts in the pic are from a Suburban pinion bearing. The damage to the race is in the one spot. The damage to the bearing carrier goes all the way around. I'm hard pressed to believe the oil in the diff didn't have something to do with the failure when the part is submerged in a bath of said oil. Further, this truck has an aftermarket diff cover that allows the diff to hold almost a gallon of oil to help with heat and lubrication.

The diff oil used when the factory oil was serviced out? Amsoil!

View attachment 194587

FYI, had there not been amsoil in that diff, that bearing would have failed much sooner and looked much worse.

 

[olyelr]

If it only was not so exsesivly expensive.!! try buying it in Canada

Yes, it is very pricey for sure! But when you factor in that you can go over 3 times as long for an oil change compared to normal dino oil, it actually isnt quite as expensive as you might think.

 

[Buzzcut]

Your opinion sounds good but not necessarily true. Pinion bearings are ruined by the young inexperienced so called mechanics at the quick lube fast service shops that exist today. I know your wondering how I know this, I use a local reputable shop to rotate/balance my tires and brakes. Two years ago, they called me to tell me my pinion seal was leaking, not a big cost, gave the go ahead because I trusted them. I have not been back, the idiot that worked on my original Tahoe had no clue that there is a " CRUSH SLEEVE " that HAS to be changed anytime the yoke comes off, it sets the preload on the bearings. Last year I finally had to replace pinion bearings as well as carrier bearings, to the tune of $741.00. I took it to a REAL MECHANIC, 40 YRS IN SAME BUILDING. @ 76, i miss my younger days, I could do almost anything, was taught the right way.
Moral of this story, STAY AWAY FROM QUICK SERVICE PLACES, you will thank me someday, Good Day.
David g............

Inexperience will do it every time. I was just commenting on the total destruction on the inner race of the bearing. In the discussion the most likely caused due to a physical defects. Oil is the lubricant, coolant and carrier of debris since it isn't filtered. Once compromised the debris will hasten the damage to a quick failure.

In the end this is all conjecture after the fact. I'm not naive enough to just blame oil in this matter.

 

[Z15]

Millions of vehicles have been successfully using AMSOIL for the past 45 yrs, since 1972. It is an excellent product. Like anything, it can be misused, misrepresented and blamed for things that are not its fault.