What Octane gas do you use
#1
What Octane gas do you use
What Octane gas do you put in your 3800 II Montes. I was told that my o2 sensor and cat went bad because of the octane and maby some of the additives used at some gas stations. I usually go to a SUNOCO and use mid 89 not reg 87 but they said i should use higher prem 93.
What do you use???
What do you use???
#3
RE: What Octane gas do you use
You should be able to use 87 octane in a non-supercharged 3800 series II.
In my supercharged 3800, I prefer to use Sunoco Ultra. Which for some reason in Canada is listed as 94 octane. But I think it may be the same 93 octane the U.S. has, but with a better P.R. campaign. LOL.
In my supercharged 3800, I prefer to use Sunoco Ultra. Which for some reason in Canada is listed as 94 octane. But I think it may be the same 93 octane the U.S. has, but with a better P.R. campaign. LOL.
#5
RE: What Octane gas do you use
I have a non supercharged 3800 II engine but I am going to see if it has anything to do with fuel additives but I fill up 99% of time a a sunoco but I going to try the citgo down the street it has no additives
#8
RE: What Octane gas do you use
Not sure about the U.S., but in Canada, Sunoco says they add "up to 10% Ethanol" to their gas.
They've done this for many years. I have always used Sunoco gas in all my cars. Except on rare occasions when a Sunoco station wasn't available.
Never had a problem with their gas, 87 octane or 94 octane. But there's always a first time.
They've done this for many years. I have always used Sunoco gas in all my cars. Except on rare occasions when a Sunoco station wasn't available.
Never had a problem with their gas, 87 octane or 94 octane. But there's always a first time.
#9
RE: What Octane gas do you use
i use 93 from Amoco/BP and Shell, but not Exxon (get about 3 mpg less on Exxon for whatever reason).
I get 2 miles per gallon over the 87 octane from the same stations... so i use the 93, pays for itself
I get 2 miles per gallon over the 87 octane from the same stations... so i use the 93, pays for itself