Hello. Let me start by saying we are an AMSOIL dealer and have stood behind the product for many applications - specifically their racing oil. However, I'm just sick about a recent occurrence and I'm curious if anyone else has had any actual experience with this. AMSOIL leads me to believe I am the only one and they have drug the warranty claim process out for 3 months, and I'm afraid they are going to stick me with this bill and tell me they are not to blame. They'll let me know next week.
We have a 1997 7.3L with only 119,000 miles on it. We have religiously maintained it with 3,000 mile oil changes since we purchased it at 45,000 miles because we wanted it to last a lifetime.
Last year when we become an AMSOIL dealer, we decided to try all of their products so we could stand behind them to our customers with actual experience and not hearsay.
Last fall we started using the Cetane Boost and All-in-One product for the fuel system. We used it a few times over the course of several months. Then it was time for the oil change in March 2018 so we used their oil and special EA filter.
Fast forward to Memorial weekend 2018. I was on a parts run for my husband before we were getting ready to head to the race track, and the truck died (never done this before) and left me stranded. Our first thought was bad fuel. We parked it until we had time to look at it. After doing some research, I told my husband to check the oil level first before we proceeded with tests on the fuel system. He laughed at me because the AMSOIL oil change was just 985 miles before and there was no way this truck ever burned, leaked, or lost a drop of oil in the 8 years we've owned it. To our surprise, it was 9-1/2 quarts low on oil. ????
We immediately contacted AMSOIL and they told us to send them an oil sample and the EA filter we purchased from them. I waited (and waited) for my results and no one ever contacted me. I emailed for an update and he apologized stating he had forgotten to send it to me. Their results said their oil was fine and there was some fuel in the oil so they blamed it on faulty fuel injector o-rings per the Ford TSB
on the subject.
Aha! We immediately notified them to let them know we had already replaced the o-rings 48,000 miles before once we learned of the bulletin and there was absolutely no reason why they should already be bad again - unless AMSOIL somehow damaged them. They want to tell me that people use AMSOIL to fix their o-ring problems and that they in no way have a history of causing problems.
I would like to know if anyone out there has any actual experience to the contrary. Either the oil, the Cetane Boost, or the All-in-One product that all had contact with the o-rings have caused one or more o-rings to fail prematurely. We know for a fact it's the o-rings. We just don't have a little man sitting inside the engine who actually saw the AMSOIL product deteriorate the seals; therefore, AMSOIL has an "out" and doesn't want to pay to fix the problem their product caused.
When you own a truck for so long and know it inside and out and then the only variable that changes causes damage such as this, it seems too coincidental that some outside force just magically caused the low-mileage seals to fail.