Premium Octane?
12-08-2022 | 09:00 PM
#17
Three Wheelin'
Joined: Apr 2015
Posts: 1,904
Likes: 480
From: Pennsylvania
You don't mention which model Macan "SHE" drives. Porsche recommends that I use 93 octane in my '22 GTS. As a minimum, they recommend 90 octane as an "Alternate fuel". Not sure what Porsche recommends for the base and S models.
....Where SHE lives there is only 91. That will have to do...But just in case I said, if she puts in 89, I would think the computer would be smart enough to retard the timing for the turbo etc
12-11-2022 | 09:27 AM
#19
Advanced
Joined: May 2007
Posts: 87
Likes: 11
From: StLouis
I drove to Phoenix a couple months ago and 93 starts to get pretty scarce the farther west you go. There are 2 websites dedicated to finding 93 so I mapped it out before leaving and did find stations in Tulsa, OKC, Alb and Amarillo. In Phx there is no 93 so I called a dealership and the service rep said it's perfectly fine to use 91...and Porsches are everywhere out there. He did say several places sell "racing fuel" 100+ octane that some drivers mix with 91 but I just used straight 91. I did wonder if he said 91's fine because that's all they have.
https://find93.com/
https://www.zeemaps.com/mobile?group=1385950
https://find93.com/
https://www.zeemaps.com/mobile?group=1385950
02-10-2023 | 09:59 AM
#21
Racer
Joined: Nov 2019
Posts: 372
Likes: 62
From: Northern Arizona
Most gas stations get gas from whatever refineries produce the same gas. The differences are additives and in some areas, how much ethanol is added. Otherwise, it really doesn't seem to matter.
Note that at higher altitudes, e.g. 5000+ ft, you can get away with lower octane fuel. At 7000 ft, I had no issues with 89 octane gasoline and never detected any knocking or other issues. This is probably considered heresy by some, but it worked fine for me.
Note that at higher altitudes, e.g. 5000+ ft, you can get away with lower octane fuel. At 7000 ft, I had no issues with 89 octane gasoline and never detected any knocking or other issues. This is probably considered heresy by some, but it worked fine for me.
02-10-2023 | 11:45 AM
#22
Thread Starter
Instructor
Joined: Jul 2022
Posts: 146
Likes: 46
Most gas stations get gas from whatever refineries produce the same gas. The differences are additives and in some areas, how much ethanol is added. Otherwise, it really doesn't seem to matter.
Note that at higher altitudes, e.g. 5000+ ft, you can get away with lower octane fuel. At 7000 ft, I had no issues with 89 octane gasoline and never detected any knocking or other issues. This is probably considered heresy by some, but it worked fine for me.
Note that at higher altitudes, e.g. 5000+ ft, you can get away with lower octane fuel. At 7000 ft, I had no issues with 89 octane gasoline and never detected any knocking or other issues. This is probably considered heresy by some, but it worked fine for me.
02-10-2023 | 01:51 PM
#23
Advanced
Joined: Nov 2022
Posts: 56
Likes: 21
for california peeps, you can kind of get 93 by mixing 100 and 91 at the same station.
7.8 gals of 91oct
and 2.2 of 100 will give you 93.
this is a 10 gallon ratio.
all up to how you see it. in nor cal there are a couple of 100OCT stations.
7.8 gals of 91oct
and 2.2 of 100 will give you 93.
this is a 10 gallon ratio.
all up to how you see it. in nor cal there are a couple of 100OCT stations.
