Whoo hooo 100 posts…
From 1955 until 1986, every V8 Chevy engine leaked from the 2 piece rear main seal they used. Mostly a drip or 2, sometimes much more.
In 1986, Chevy changed to a one piece seal and the drips stopped. And they have stayed dry unless the seal goes bad.
@bing - valid questions.
My thinking is if I am using M1, I am spending 5x $60 (I pay $20 to the m/c + parts I buy). So these tests cost me half of those oil change. And the cost is just for the 1st yr only. It is also like going to the doctor for the physical exam. You get to know the engine better and perhaps you uncover something else to do preventive maintenance! You could skip the 5k and go for the 10k - if the oil test like new you could then do it at 20k.
Yes.
As for the Chevy engine, I only knew what he told me. We were both working on our engines in side by side bays, that is how I got to know him. Of course, the Amsoil of the 70’s is not the same as today. I’m sure they upgraded.
If u are driving 12k/yr use AMS XL - price is cheaper than M1
AMSOIL Limited Warranty – Lubricants
(for the 50 United States, the District of Columbia and Canada)
WHAT THIS WARRANTY COVERS:
AMSOIL INC. of Superior, Wisconsin (“AMSOIL” or “AMSOIL INC.”) hereby warrants to the Consumer that, at the time of sale, its lubri-
cants are free of defective materials, design and workmanship and are fit for use according to the written recommendations of AMSOIL
and in applications for which one or more of the specifications set forth in the product data bulletins and product labels are specified.
WHAT THIS LIMITED WARRANTY DOES NOT COVER:
• AMSOIL lubricants for which AMSOIL offers a separate, specific warranty.
• AMSOIL lubricants that are not (1) packaged by AMSOIL or an authorized AMSOIL packager, and (2) sold by AMSOIL or an
authorized AMSOIL Dealer.
• AMSOIL lubricants that have been used in conjunction with any other product or additive that has not been authorized for use by
AMSOIL.
• AMSOIL lubricants contaminated after leaving the AMSOIL facilities or premises. Examples include contamination due to improper
handling, re-packaging, storage or filtration and contamination from dirty dispensing equipment.
• AMSOIL lubricants used in mechanically deficient equipment. Examples of mechanically deficient equipment include flawed or
defective equipment due to abnormal operation, negligence, abuse, previous damage or improper modification, including use of
components other than those from AMSOIL or AMSOIL aftermarket partners.
• Failure of equipment due to not following original equipment manufacturer (hereinafter, “OEM”) recommendations for warranty
coverage, including lubricants, maintenance and drain intervals, prior to the first installation of AMSOIL lubricants, or any other
pre-existing condition or OEM defect unrelated to the use of AMSOIL.
• Repair or replacement of equipment because of normal wear.
• Failure of equipment when AMSOIL lubricants are not used in strict accordance with either the written recommendations of
AMSOIL or the OEM for warranty coverage. The Consumer is solely responsible for determining a product’s merchantability or
fitness (“suitability”) for a particular purpose and assumes all risks and liabilities when used other than in strict accordance with
either the written recommendations of AMSOIL or the OEM for warranty coverage.
• AMSOIL lubricants used in any manned aircraft or aviation application.
• AMSOIL lubricants that have been used for the purposes of racing.
• Any allegedly defective AMSOIL lubricant for which a reasonable sample has not been preserved.
• Damages if the Consumer does not send or make the parts requested available for inspection by AMSOIL or its insurer.
WHAT AMSOIL WILL DO TO CORRECT A COVERED DEFECT:
If the AMSOIL lubricant is defective in materials, design and workmanship, AMSOIL will (1) replace the defective lubricant; and (2) at the
option and cost of AMSOIL, repair or replace components damaged by the defective AMSOIL lubricant. REPAIR OR REPLACEMENT,
AS PROVIDED IN THIS PARAGRAPH, IS THE CONSUMER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS LIMITED WARRANTY.
WHAT IS REQUIRED TO MAKE A CLAIM:
• AMSOIL requires an eight (8) ounce representative oil sample taken from the failed equipment. Such sample must be placed into
a clean, dry container for warranty claims filed with AMSOIL.
• If there is engine damage and the vehicle is under warranty, file a warranty claim with the OEM. If the OEM denies the warranty claim,
the Consumer must provide a written copy of the OEM’s warranty denial if such denial is based on use of an AMSOIL lubricant.
• Notify AMSOIL at (715) 399-8324 immediately. In the alternative, you may mail a claim notice, along with the OEM denial to
AMSOIL INC., ATTN: Technical Services, 1 AMSOIL Center, Superior, WI 54880, postmarked within 30 days of failure or alleged
defect.
• Keep the failed parts for inspection by AMSOIL, unless given to the OEM.
• Mail, at your expense, the following items to AMSOIL INC., ATTN: Technical Services, 1 AMSOIL Center, Superior, WI 54880:
Pleaseeeeeeee make it stoppppppp
Who cares about the price? It’s irrelevant. That’s my point. When you figure the price difference over a year between any 2 oils the money you save is really insignificant.
Exactly. This is a solution in search of a problem.
IMHO motor oil is like socks.
If you make them out of kevlar they may never wear out even if you are an elite athlete.
But they will still get dirty.
High end synthetic oils are like kevlar socks.
If you’re a couch potato with sweaty, smelly feet, you might want to change your socks frequently.
In that case some cheap cotton socks might hold up just fine for the duration.
A lot of “severe service” driving might contaminate the oil with fuel and abrasive particles too fine for the filter to catch.
Those particles might get by the bearing clearances, but cam lobe to lifter and ring to cylinder have essentially no clearance.
The fanciest base oil will not stop that stuff from gathering.
I’m using SuperTech Synthetic, and pre-COVID it used to take me 9 months to go 5000 miles.
Depending on road trips, I might go a full 12 months this time around.
It seems something is missing - you came about $60 when my calc showed $121 as below - math - that is why responded - ultimately everything is about money - there is no free lunch:
I had a experience in the past when I was “inspired” by the heavy Amsoil advertisement campaign and bought a couple of jugs over the internet.
It was not cheaper than local store branded oil (my reference is Valvoline, but I have nothing against M1 or Pennzoil for example) once shipping is taken into account. I comparing to full synthetics, BTW.
Further, both of my [well used] cars showed leaks over seals and gaskets, so I was sad and surprised, and on the next change I transitioned back to the locally procured oil of “high mileage” type, so the leaks slowly disappeared after some time, but all that idea of using more expensive mail-order oil did not get very far with me.
Should I claim Amsoil usage leads to the oil leaks developing based on my experience?
Unlikely, it’s more like a coincidence… but somehow repeated and coninciding with the oil brand change.
Was it anything I gained from using Amsoil?
Hell no!
Will I use it again?
Ditto!
I dozed off a little and it just got longer. OK, OK, I’ll buy, Uncle, Uncle.
Actually I am thinking of using SuperTech too instead of M1 as one of my car drive as much as yours. Others stated Costco;s oil is made by SuperTech
Anybody else notice the AMS warranty doesn’t cover lack of adherence to the manufacturers recommended maintenance intervals? Or normal wear and tear?
So essentially the warranty is worthless as it won’t cover the extended oil change intervals AMS claims nor normal wear and tear. No savings, no kindness to the planet (waste oil is recycled into other stuff made from hydrocarbons) and no labor savings. Just hype.
Exactly. And my point still stands. You will spend more on lunch than you will ever save on oil changes.
I assume then that you are likely to be familiar with vibrator-thumper trucks? Are those even still used these days?
Once upon a time long ago I was the lowly secretarial clerk in the shipping department of Seismograph Corp. The tires for those trucks were immense. And the huge thumper plate weighed a mere ton. 
So did my parents’ 1983 Olds. For years it had it’s own shallow box of cat litter on the garage floor to catch the oil drip while parked. It was cheaper to add oil as needed than to repair the leaking rear main seal.
Yes, that stuck out like a sore thumb to me also.
Yes and yes, I think one company calls them “Vibro-Seis” trucks. I just evaluated some of that data last week.