Can I put gas at Octane 87(regular) in my 97 SSEi?
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Originally Posted by DrJay
Originally Posted by willwren
Originally Posted by DrJay
Will you always have a way to scare people 
One statement causes unnecessary fear while the other actually informs him of the risks involved.
Interesting to me there isn't the same fear of using a K&N filter, which many feel has a more direct effect on a sensor which could in turn cause engine failure.
I'm not trying to split hairs, but that'* the only reason I say anything on the subject anymore. I'll be quiet now
Master, there would be no benefit for you or your car to run more than 87 octane unless at the track.
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From: Georgia
97 or so ...Oh and BTW, our PCM'* can retard up to 20*...don't ask.
Really though, I could see if the K&N filter bit is true that it would be a bigger issue. Oil gets all over the MAF and reduces the readings. Now you're running lean. Mix it with a dirty injector and a heavy foot...could be in for some trouble. MAF = sensitive. Knock sensor = rather robust.
I would certainly be more afraid of that than running 87 octane.
...Oh and BTW, our PCM'* can retard up to 20*...don't ask.Really though, I could see if the K&N filter bit is true that it would be a bigger issue. Oil gets all over the MAF and reduces the readings. Now you're running lean. Mix it with a dirty injector and a heavy foot...could be in for some trouble. MAF = sensitive. Knock sensor = rather robust.
I would certainly be more afraid of that than running 87 octane.
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Originally Posted by rjolly87
Originally Posted by JimmyFloyd
I am running mid grade 89 in my 93 SSEi, but that is the lowest I will go. About once a month I run premium in it just so it remembers what it is like.
Originally Posted by Masterbm
Well on the subject of gas would it help my car if ran more then 87 octane. My car say it recommend 87 so I have run 87
Regular is $.20 cheaper than premium. Which means you save $2.00-$3.00 a fill running regular depending on how much you need, so if the car takes regular, I would run it.
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i've been cheating myself with plus....that'* the lowest i'll go though, and i only trust using it now cuz i've slowed down. If i start to get hard on the pedal again, i'll switch to premium for optimum performance
i haven't noticed a diff in mpg'* with plus either tho
i haven't noticed a diff in mpg'* with plus either tho
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Dr Jay & Willwren:
Ok, I have listened to the posts here.
So if I continue to burn 87 in my SSEi, I run a risk of damaging components, which in turn could damage the engine if the components are not replaced. I am a pretty 'soft, steady, driver', driving 70 highway miles daily. So what is the probability I will damage components? Is it 25%, 50%, 75% some component will go bad? How quickly will a component go bad? Also, which component would likely to fail first?
Ok, I have listened to the posts here.
So if I continue to burn 87 in my SSEi, I run a risk of damaging components, which in turn could damage the engine if the components are not replaced. I am a pretty 'soft, steady, driver', driving 70 highway miles daily. So what is the probability I will damage components? Is it 25%, 50%, 75% some component will go bad? How quickly will a component go bad? Also, which component would likely to fail first?
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tverhein,
The best advice I can give you is that if you're not willing to run the 91 octane minimum that Pontiac reccomends for your car, you should look for another car. Or get another car as a daily driver that will run off of 87.
The best advice I can give you is that if you're not willing to run the 91 octane minimum that Pontiac reccomends for your car, you should look for another car. Or get another car as a daily driver that will run off of 87.
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Bill.. can you confirm this?
I"ve been hearing that when timing gets retarded over a period of time ( from lets say running 87 stead of 91+ ).. it causes inefficiency ( which you can tell by MPG ) but it will also leave some kind of residue which in the long run is bad?? :? Might be alright in winter to run a lower grade ( MPG during winter isn't much difference between 89 and 91 for me that'* noticable.. but when tempreture is above zero.. I see the difference in MPG.. 700Km on 91 with still well over 1/8th tank.. I calculate 650KM to E in mid grade 89 ( I don't go pass 1/8th unless I had run previous mid grade in there.. so it'* bout 600Km when it start chiming "ADD FUEL FOOL !!" )
Dr. yes.. I know bout the K&N filter issue also.. thats why I haven't changed.. I'm lookin for other alternatives.. but haven't put much time and effort into it.. might be a winter research for me
EDITED
I"ve been hearing that when timing gets retarded over a period of time ( from lets say running 87 stead of 91+ ).. it causes inefficiency ( which you can tell by MPG ) but it will also leave some kind of residue which in the long run is bad?? :? Might be alright in winter to run a lower grade ( MPG during winter isn't much difference between 89 and 91 for me that'* noticable.. but when tempreture is above zero.. I see the difference in MPG.. 700Km on 91 with still well over 1/8th tank.. I calculate 650KM to E in mid grade 89 ( I don't go pass 1/8th unless I had run previous mid grade in there.. so it'* bout 600Km when it start chiming "ADD FUEL FOOL !!" )
Dr. yes.. I know bout the K&N filter issue also.. thats why I haven't changed.. I'm lookin for other alternatives.. but haven't put much time and effort into it.. might be a winter research for me
EDITED
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From: Lethbridge, Alberta, _______Canada._______ West Coast Bonneville Fest ___05,06,07 Survivor___
Personally ive never put anything less than 91 in my Bonneville..hence its parked at the moment. I won't chance running anything less.
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Originally Posted by SSEimatt93
Personally ive never put anything less than 91 in my Bonneville..hence its parked at the moment. I won't chance running anything less.
tverhein, i would atleast suggest plus if you do not want to run premium in your car. It won't have as significant effects on the car. I am surprised BillBoost has not posted here. He said he was reading the manual and it said you could run a lower octane, but would not have the performance as with Premium. Not sure which manual it was in though.