I'll chime in,we use good old regular, albeit Canadian gas..not sure the difference, but if you like the good stuff more power too you,just can't see an actual boost in hp at the foot,17pro4x.
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Except when traveling I refuel each Friday - sometimes Saturday, but either way once a week. Likewise except when traveling and forced to take whatever is at an exit, I always choose a top tier gasoline.
Over the past year, for 18,xxx miles and 82 fill ups, I did a month at a time of regular 87, mid grade 89, and premium 91.
I also did two months of Ethanol free regular - which costs as much as premium around where I live.
Finally, I keep a detailed, “OCD meticulous” spreadsheet of my miles and fuel consumption.
Over the year noted above I recorded no difference in fuel economy, and couldn’t feel any difference in engine performance with any grade of gasoline.
Just run what you prefer and don’t worry about it. IMHO.
PS - message me an email addy and you are welcome to a copy of Rick’s OCD fuel economy spreadsheet.
Sent from my iPhone using Tapatalk Pro
Over the past year, for 18,xxx miles and 82 fill ups, I did a month at a time of regular 87, mid grade 89, and premium 91.
I also did two months of Ethanol free regular - which costs as much as premium around where I live.
Finally, I keep a detailed, “OCD meticulous” spreadsheet of my miles and fuel consumption.
Over the year noted above I recorded no difference in fuel economy, and couldn’t feel any difference in engine performance with any grade of gasoline.
Just run what you prefer and don’t worry about it. IMHO.
PS - message me an email addy and you are welcome to a copy of Rick’s OCD fuel economy spreadsheet.
Sent from my iPhone using Tapatalk Pro
You really did your homework! Thanks so much for sharing the results.
Except when traveling I refuel each Friday - sometimes Saturday, but either way once a week. Likewise except when traveling and forced to take whatever is at an exit, I always choose a top tier gasoline.
Over the past year, for 18,xxx miles and 82 fill ups, I did a month at a time of regular 87, mid grade 89, and premium 91.
I also did two months of Ethanol free regular - which costs as much as premium around where I live.
Finally, I keep a detailed, “OCD meticulous” spreadsheet of my miles and fuel consumption.
Over the year noted above I recorded no difference in fuel economy, and couldn’t feel any difference in engine performance with any grade of gasoline.
Just run what you prefer and don’t worry about it. IMHO.
PS - message me an email addy and you are welcome to a copy of Rick’s OCD fuel economy spreadsheet.
Sent from my iPhone using Tapatalk Pro
You wouldn’t happen to be an engineer would you? Also, I think I read somewhere on the forum that you have to reset your ECU to take full advantage of premium. Kind of a fast learning thing. Maybe I’m mistaking that for the CAI?Except when traveling I refuel each Friday - sometimes Saturday, but either way once a week. Likewise except when traveling and forced to take whatever is at an exit, I always choose a top tier gasoline.
Over the past year, for 18,xxx miles and 82 fill ups, I did a month at a time of regular 87, mid grade 89, and premium 91.
I also did two months of Ethanol free regular - which costs as much as premium around where I live.
Finally, I keep a detailed, “OCD meticulous” spreadsheet of my miles and fuel consumption.
Over the year noted above I recorded no difference in fuel economy, and couldn’t feel any difference in engine performance with any grade of gasoline.
Just run what you prefer and don’t worry about it. IMHO.
PS - message me an email addy and you are welcome to a copy of Rick’s OCD fuel economy spreadsheet.
Sent from my iPhone using Tapatalk Pro
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