A reminder to run Top Tier fuel and avoid cheap gas

I don’t know about today, but years ago Chevron added more Techron to their premium gasoline vs the 87 octane.
 
Here it is mostly Shell and Philips 66, with a smattering of smaller ones.

The ones that are not on the list are Casey's and Sam's Club.
 
I had a mechanic tell me that higher octane fuels can burn holes in your pistons, plus a whole other myriad of problems.

They do great work for me, but this line of thinking is absurd. I've been running 91-93 through my vehicles for years with no problems.
 
Octane is literally just resistance to detonation. How in the world could it burn your pistons, and how would performance cars avoid that? :unsure:
 
I had a mechanic tell me that higher octane fuels can burn holes in your pistons, plus a whole other myriad of problems.
I think you may have understood that the wrong way round. LOWER octane fuels are subject to detonation (knock) and THAT can burn holes in pistons, etc.
 
Octane is literally just resistance to detonation. How in the world could it burn your pistons, and how would performance cars avoid that? :unsure:
He said what he said.
I think you may have understood that the wrong way round. LOWER octane fuels are subject to detonation (knock) and THAT can burn holes in pistons, etc.
He said what he said.

When he was saying it, he was sounding like a mental person explaining a conspiracy theory.

I need a new mechanic.
 
Here it is mostly Shell and Philips 66, with a smattering of smaller ones.

The ones that are not on the list are Casey's and Sam's Club.

Over here (Canada), I stick to Shell, and sometimes Co-Op or Costco. I know Domo and 7-11 gas isn't Top Tier certified, so I avoid fueling at those stations when possible. I was surprised to learn that Petro Canada is not Top Tier certified, while Tempo fuel is.
 
Over here (Canada), I stick to Shell, and sometimes Co-Op or Costco. I know Domo and 7-11 gas isn't Top Tier certified, so I avoid fueling at those stations when possible. I was surprised to learn that Petro Canada is not Top Tier certified, while Tempo fuel is.
I am also in Canada and I have been using Shell mostly sometimes Esso
 

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