The the Law in question is of very difficult application even where it squarely covers a loss.
Lets say your engine blows up and DC says no warranty coverage because you were using brand "F" oil filter and its failure caused the engine damage. You go to brand "F" company and tell them DC says their filter caused the destruction of your engine and you want them to buy you a replacement engine. The nice folks at brand "F" tell you that those people at DC don't know what they are talking about; the brand "F" filter did not cause the damage.
Where does that leave you?
If you are going to try to collect from one of them, you call all sorts of governmental agencys and they will all tell you the same thing; this is a civil matter for you to resolve in the courts.
You ask DC and the folks at brand F to meet you in court to resolve it and what will they do? ignor you completely.
Now what can you do?
You go see your lawyer and explain the situation to him.
He/she being no dummy, thinks,"HHMMM, this guy wants me to take on two huge corporations. That should tie me up for the next two or three years and take about 500 hours of my time, and cost about $5000. in expenses". (It would be dumb to sue only one of them as at trial they would convincingly point the finger at the other guy and try to convince the jury that you have a great case, its just that its against the other company; that is a very easy thing to sell a jury on)
So friendly lawyer, liking to pay his office rent, the mortgage on his house, the payment on his and his wifes car, not to mention office staff etc, etc, says to you.
"why, I would be delighted to take your case and I will get started on it just as soon as you post a small retainer with me of , oh, lets say $7500. to start and then you can make payments as we go along".
The reality is that the federal law as nice as it sounds, means little to most of us.
It is very much simpler and safer to use the approved filters, fluids etc rather than to rely on what is largly "pie in the sky". The liklyhood of one of us enforcing that law is slim to none-----unless you really are ready and able to put up more than you are likely to ever recover just on the principal of the thing, that is it would be cheaper to just take your ten grand and go buy a new engine.
P. S.
Sorry to sound so pessimistic, but I have been there and done that as a lawyer. In the mid 60's I recoverd $25,000 (that was a significant recovery in the 60's)from a major drug manufacturer for a nice elderly lady, and found that, when I had paid all the expenses involved in that kind of law suit, and deducted my agreed fee ( my fee was to be nothing unless I recovered something in which case I would be out all my time and office expenses and she would pay all other expenses of the law suit, but if we recovered something, I would take 1/3 after deducting all non office expenses)
After deducting the non-office expenses, I made about minimum wages and she got very little.
Vaughn