Forum Discussion
wq93
Jun 05, 2019Explorer
And keep in mind that a lot of current gas powered engines need 89 or 91 to provide rated power and economy even though they can operate on 87 via audible knock sensors which alert the ECM to use the low octane map.
My Corvette Z06 wants 93 octane which is anything but cheap although I do run a couple of tanks of 91 octane through it just before winter because that is the highest octane available ethanol free in this area.
I use red dye diesel fuel for my tractor and to keep the tank filled in my standby generator since it is significantly cheaper because there is no road tax. In many areas, the greater spread between diesel and gas is from long years of taxing diesel at a higher rate to further tax the road damaging heavy truck industry coupled with the view that it was a "hidden" pass along tax so average citizens wouldn't scream as loudly about it since they don't realize that they are paying it indirectly in the cost of goods. But there is no way I would risk that fuel and the associated fines in my GMC 2500HD. Several years ago there was a brief period when red dye was allowed in this area on the road because of a shortage of road taxed diesel but that was a brief and unusual experience.
My Corvette Z06 wants 93 octane which is anything but cheap although I do run a couple of tanks of 91 octane through it just before winter because that is the highest octane available ethanol free in this area.
I use red dye diesel fuel for my tractor and to keep the tank filled in my standby generator since it is significantly cheaper because there is no road tax. In many areas, the greater spread between diesel and gas is from long years of taxing diesel at a higher rate to further tax the road damaging heavy truck industry coupled with the view that it was a "hidden" pass along tax so average citizens wouldn't scream as loudly about it since they don't realize that they are paying it indirectly in the cost of goods. But there is no way I would risk that fuel and the associated fines in my GMC 2500HD. Several years ago there was a brief period when red dye was allowed in this area on the road because of a shortage of road taxed diesel but that was a brief and unusual experience.
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