View Poll Results: What grade of gasoline do you put in your Maxima?
87 Octane
80
11.56%
89 Octane
87
12.57%
92 Octane
213
30.78%
over 92 Octane
303
43.79%
diesel: Are car takes gasoline?
9
1.30%
Voters: 692. You may not vote on this poll
What brand and grade of gas do you put in your Maxima?
07-15-2001, 01:44 PM
#17
Senior Member
Join Date: Feb 2001
Posts: 144
Does it matter?
80-90% of the Gas you buy comes out of the same tank farm and is delievered to Mobil, Exxon, Texaco, Chevron, etc in the same trucks where additives are added at the station.
Other "off the wall" brands are bought as "odd-lot" and sold through brokers and may be refined by a number of Petro companies.
A Good rule of Thumb is if it don't ping at 89 Octane you gain nothing by going higher, For the higher Octane gases Don't burn HOTTER just LONGER, as the octane increases they retard the burn as not to have predetonation, this becoomes a concern in higher compression engines.
Dave
Other "off the wall" brands are bought as "odd-lot" and sold through brokers and may be refined by a number of Petro companies.
A Good rule of Thumb is if it don't ping at 89 Octane you gain nothing by going higher, For the higher Octane gases Don't burn HOTTER just LONGER, as the octane increases they retard the burn as not to have predetonation, this becoomes a concern in higher compression engines.
Dave
07-15-2001, 01:51 PM
#18
Senior Member
Join Date: Feb 2001
Posts: 144
Does it matter?
80-90% of the Gas you buy comes out of the same tank farm and is delievered to Mobil, Exxon, Texaco, Chevron, etc in the same trucks where additives are added at the station.
Other "off the wall" brands are bought as "odd-lot" and sold through brokers and may be refined by a number of Petro companies.
A Good rule of Thumb is if it don't ping at 89 Octane you gain nothing by going higher, For the higher Octane gases Don't burn HOTTER just LONGER, as the octane increases they retard the burn as not to have predetonation, this becoomes a concern in higher compression engines.
Dave
Other "off the wall" brands are bought as "odd-lot" and sold through brokers and may be refined by a number of Petro companies.
A Good rule of Thumb is if it don't ping at 89 Octane you gain nothing by going higher, For the higher Octane gases Don't burn HOTTER just LONGER, as the octane increases they retard the burn as not to have predetonation, this becoomes a concern in higher compression engines.
Dave
07-15-2001, 04:27 PM
#19
Senior Member
Join Date: Jan 2001
Posts: 400
Re: Does it matter?
Originally posted by Coldboot-SE
A Good rule of Thumb is if it don't ping at 89 Octane you gain nothing by going higher...
A Good rule of Thumb is if it don't ping at 89 Octane you gain nothing by going higher...
07-15-2001, 04:41 PM
#20
Senior Member
Join Date: Aug 2000
Posts: 2,835
Originally posted by ximama
over here we only get 91 octane now. i think that really sucks. they still even charge the same!!!btw that would be in the bay area (west coast s.f. area)
ximama
over here we only get 91 octane now. i think that really sucks. they still even charge the same!!!btw that would be in the bay area (west coast s.f. area)
ximama
07-15-2001, 07:24 PM
#25
I use Sunoco Ultra 94. I know my car, it runs much faster than my 2nd best, Shells 93. For people who always goes by the book, reading whatever, or been told by people "In the industry or those know it all types" that's great for you.
I did my own comparison and by far Sunoco Ultra 94 is right for me.
In the words of Mick Foley, "Have a nice day."
I did my own comparison and by far Sunoco Ultra 94 is right for me.
In the words of Mick Foley, "Have a nice day."
07-16-2001, 02:37 PM
#33
Do you notice any difference (between Chevron and Costco)? I always use Chevron also, but the gas price is so high and $1.59/gal is too attractive. 
Originally posted by Sarah99GXE
93 Octane, Usually Chevron or Shell, but lately it's been Costco gas because it's $1.59/ gallon ofr 93
93 Octane, Usually Chevron or Shell, but lately it's been Costco gas because it's $1.59/ gallon ofr 93
07-17-2001, 08:53 AM
#37
Senior Member
Join Date: Dec 2000
Posts: 536
Originally posted by SunMax
Do you notice any difference (between Chevron and Costco)? I always use Chevron also, but the gas price is so high and $1.59/gal is too attractive.
Do you notice any difference (between Chevron and Costco)? I always use Chevron also, but the gas price is so high and $1.59/gal is too attractive.
07-17-2001, 09:20 AM
#38
Not DAVEB the parts guy
Join Date: Aug 2000
Posts: 8,555
In Kansas City and much of the upper Midwest we've only got 91. Amaco carries 92, but my car doesn't seem to like it much. I've tried Amaco, Phillips, Texaco, and recently Conoco. I don't know what it is, but the Conoco fuel makes my car more responsive. I've even changed between brands just to make sure. It's been well into the 90s lately and my car feels very quick. I can't wait until things cool down.
MTBE is Methyl Tert Butyl Ether which is very nasty stuff. I do environmental engineering and we deal with this stuff on a regular basis. The problem with MTBE is that it is extremely hard to get out of water once it's in. When you spill gasoline, most of it evaporates, but the MTBE is left on the surface and gets washed away. Usually it goes into a water body or the soil. When it gets in the spoil, it goes straight into the groundwater. One gallon of MTBE can make 1 million gallons of water taste funny. MTBE was added in fuel to make cars cleaner burning. As it turns out it makes little difference in emissions, makes for worse performance, and is a nasty contaminant. This was one of those little government emission band-aids that didn't work....like most. As far as I know, MTBE is being phased out. From what I've been told, MTBE messes with octane ratings. This is why you see 93-94 octane in the more smog riden cities. 94 in a smog riden city is like 91 in a clean city. I rarely see the MTBE label at the pumps here. However in St. Louis, Atlanta, and New Orleans I see then at nearly every pump.
Dave
MTBE is Methyl Tert Butyl Ether which is very nasty stuff. I do environmental engineering and we deal with this stuff on a regular basis. The problem with MTBE is that it is extremely hard to get out of water once it's in. When you spill gasoline, most of it evaporates, but the MTBE is left on the surface and gets washed away. Usually it goes into a water body or the soil. When it gets in the spoil, it goes straight into the groundwater. One gallon of MTBE can make 1 million gallons of water taste funny. MTBE was added in fuel to make cars cleaner burning. As it turns out it makes little difference in emissions, makes for worse performance, and is a nasty contaminant. This was one of those little government emission band-aids that didn't work....like most. As far as I know, MTBE is being phased out. From what I've been told, MTBE messes with octane ratings. This is why you see 93-94 octane in the more smog riden cities. 94 in a smog riden city is like 91 in a clean city. I rarely see the MTBE label at the pumps here. However in St. Louis, Atlanta, and New Orleans I see then at nearly every pump.
Dave
