Don't know why you should change the oil, but at the very least drain the tank, fuel filter change. Cleaning the system won't hurt either.
Will the station pay for any of the work?
Your link says to change the oil due to the acids, fuel filter in the tank part of the pump I think. Get go SAY"S they will take care of any costs including a rental car which I don't need.
I doubt if all farmers want to grow corn for fuel, only the unscrupulous ones who want to make money at any cost. Growing corn for ethanol production is highly subsidized and the money comes out of consumers' pockets. It's just another scam, like wind turbines.The truly sad part is all this crap with ethanol IMO is a huge give away to the farm lobby. Most of what I have read when you take into account all factors it is a net energy loser. It gives incentive to farmers to grow corn where they otherwise wouldn't. Which means more fertilizer used, which a lot comes from natural gas. Much of the corn after it is used is dumped. Brazil makes it work because they use sugar cane, a much easier thing to do.
That doesn't even take into account all of the older engines damaged for this stuff.
While this is old and they have gotten better, it still takes more fuel to make it than it ever produces.
Study: Ethanol Production Consumes Six Units Of Energy To Produce Just One
I doubt if all farmers want to grow corn for fuel, only the unscrupulous ones who want to make money at any cost. Growing corn for ethanol production is highly subsidized and the money comes out of consumers' pockets. It's just another scam, like wind turbines.
Don't get dairy farming confused with the green energy scam that's being paid for by taxpayers. Ethanol from corn is heavily subsidized. Governments are too weak-kneed to oppose all the pseudo-green boondoggles.So is the farmer who see the price of milk go up and adds cows to milk unscrupulous? Or the farmer that sees a shortage of soybeans and plants more unscrupulous? Or the famer that sees a demand for beef (because of higher prices) and adds beet cattle unscrupulous?