Originally Posted By: OilGuy2
Originally Posted By: OldCowboy
Originally Posted By: Travis99LS1
Just something to keep in mind...Hyundai is very strict on using the proper weight for warranty purposes. Now how they would actually tell I don't know...unlikely they would test the oil...but just something to consider
They would tell the same way any other manufacturer would. By demanding to see your maintenance log and purchase receipts. If you don't have a maintenance log documenting proper maintenance or receipts to substantiate the use of proper oil, filter, etc., the manufacturer can void your engine warranty.
No Sir! Magnuson-Moss Warranty Act prohibits a manufacturer from voiding a warranty unless Hyundai offered the maintenance they require free of charge.
It is usually an uninformed mechanic trying to push the issue. Sometimes its an unscrupulous dealership that is trying to get paid for the service twice from both the car's owner and the manufacturer.
The owner's manual is filled with "recommendations". They are not absolutes with regard to warranty coverage unless they are provided for free. You can take a car for service wherever you wish and you do not have to document a thing.
The responsibility of proof is entirely on the manufacturer. It is cheaper to just proceed with the repairs than involve lawyers and the courts.
Some manufacturers do provide bumper to bumper free maintenance during the main warranty years (for example, Audi)
"Don't know about your police work Oilguy2". I guess you didn't follow the VW/Audi sludge issue.
In order to have any warranty coverage re. engine failure you had to prove for most of the engine life 5,000 mi. oil changes. You were allowed to miss 1 receipt. VW denied numerous claims based on this however they are a pathetic organization.
The "recommendations" are for weights and types, not required intervals. MM refers to using a specific type or brand.