Suppose you put Amsoil in your GM engine and the engine developed engine problems[ high oil useage for example] while still under warranty. How would GM know what kind of oil is in the engine if you did not tell them? What would GM do in this instance?
GM Warranty
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They could do an oil analysis to determine what type of oil you were using, but I find that highly unlikely. If a problem were to develop, you could just drain the oil and install an API approved oil in the proper grade before taking it in.
How much oil is the car using?
I suspect they would go into denial. They may ask what kind of oil you are using.
If they suspect the oil, they may do an analysis, but a normal $20 analysis will not tell them exactly what kind of oil.
I suspect they would go into denial. They may ask what kind of oil you are using.
If they suspect the oil, they may do an analysis, but a normal $20 analysis will not tell them exactly what kind of oil.
First they will ask for your oil change records and any other maintenance records you might have. They will also most likely send a sample for analisis.
I've been involved with these claims with Toyota, Ford, and Nissan. The three Toyota Land Cruisers got oil analisis and a full review of the maintenance records, which included a file about an inch and a half thick for each, documenting the Oil changes, brand, visc, air and oil filters, all fuel consumed, all oil added between changes, etc. Toyota repaired the engines after a big fight, partly because all this documentation and the oil analisis showed the client to be right, also because the client purchased dozens of Toyotas every year and was worth saving.
The Nissans with problems ranged across 4 different customers of theirs, with the only common element being the oil used, but it was the oil used by the dealer. Oil analisis showed it did not meet the specs on on the spec sheet. The replaced the engines and changed oil brands. The oil in the Fords came back well within spec, and after much analisis it was determined that the bearings should have had securing pins, canals, or something to keep them from spinning. (1.4 liter Ztec engine). Their response was that the engine was designed that way, so it was not a manufacturing fault, Each customer ended up paying the reparation (with a modification at a local machine shop so they would stay in place.
I've been involved with these claims with Toyota, Ford, and Nissan. The three Toyota Land Cruisers got oil analisis and a full review of the maintenance records, which included a file about an inch and a half thick for each, documenting the Oil changes, brand, visc, air and oil filters, all fuel consumed, all oil added between changes, etc. Toyota repaired the engines after a big fight, partly because all this documentation and the oil analisis showed the client to be right, also because the client purchased dozens of Toyotas every year and was worth saving.
The Nissans with problems ranged across 4 different customers of theirs, with the only common element being the oil used, but it was the oil used by the dealer. Oil analisis showed it did not meet the specs on on the spec sheet. The replaced the engines and changed oil brands. The oil in the Fords came back well within spec, and after much analisis it was determined that the bearings should have had securing pins, canals, or something to keep them from spinning. (1.4 liter Ztec engine). Their response was that the engine was designed that way, so it was not a manufacturing fault, Each customer ended up paying the reparation (with a modification at a local machine shop so they would stay in place.
This is a hypothetical question that cannot be answered. There is no way to predict what a dealer will do or say. So all one can do it relate prior experiences which are often negative.
If this is something that is going to drive you paranoid then go and have the dealer do all you service. I have used Amsoil in new GM vehicles since 1977 and never had an engine related problems in 28 yrs and if I were to have on tomorrow I can say from experience its not the oil.
Currently have it in a 2004 GMC and a 2002 Firebird in which I use the Amsoil. The GMC, 5W-30 has been in there for about 10,000 mile (March '04) and the Pontiac gets its 10W-30 changed one per year which happens to be when the oil change light comes on (Poncho is stored for 6 months during winter).
If this is something that is going to drive you paranoid then go and have the dealer do all you service. I have used Amsoil in new GM vehicles since 1977 and never had an engine related problems in 28 yrs and if I were to have on tomorrow I can say from experience its not the oil.
Currently have it in a 2004 GMC and a 2002 Firebird in which I use the Amsoil. The GMC, 5W-30 has been in there for about 10,000 mile (March '04) and the Pontiac gets its 10W-30 changed one per year which happens to be when the oil change light comes on (Poncho is stored for 6 months during winter).
Well, to be honest, I would never personally run Amsoil in an engine unless I intended to run extended OCIs. If your OCIs exceed the GM oil life monitor's reccomendations, that may conflict with your warranty.
But maybe you're willing to run oil at an Amsoil price point for only what the computer says.
If you are, then good for you.
Which GM motor and what specific oil usage rate?
5.3 L using Amsoil S3K.
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