aaah, yes, 87 was a good year, i remember it well.
The by-product of poor gas milage with 89 compared to 87 is "performance" ... I think it was car and driver that stated our cars are "thirsty" and have "...gas guzzeling performance" ... there you have it ... poor gas milage on the 6s = sweet spot performance!!!I get about 3 miles per gallon less on 89 (10% ethanol) then I do on 87 on average. Ive done 3 tanks on each and the results are consistant 16-16.5 on 89, and 19-20 on 87. I've also noticed that it seems as though i get a bit more pull in the low rpms with the 87. I did 2 tanks on 91 and nothing changed between that and the 87 so I quit "testing it" as it was ~ $4-5 more per tank of gas. I havent raced it though so go fig. If i do ill use 91 probably. There is a gas station that sells "120" racing fuel.. lol, but i have yet to test this. Seems kind of pointless anway and it was well over $3 per gallon last year.
yea they say compression and all that affects it..however
my engine has the same bore, stroke, compression as my brother's maxima
his is reccomended for high octane fuel
Hi, im just wondering what octane gas I should use. In the owners manual is says to use 87, but to my knowledge isn't 91 always better. 91 octane is supposed to be for, correct me if im wrong higher compression motors. So does the V6 mazda 6S motor need 91 or is it just a waste?
I also know if the motor is supposed to use 91 and you use 87 it will throw on the "check engine" light, because the emissions sensor will read incorrectly if 87 is used. I'm currently using 91, but I really dont want to waste money if its not going to really matter.
Somebody correct me if I'm wrong, but I believe the way Germany rates their octane levels is different from the way that North America rates octane. If so, your 92 is not the same thing as our 92.lol, here in Germany the lowest octane we have is 92. We have 92, 95, 99 and 100. And for the 4-cyl we have to take the 95 minimum.
This is a really funny thread. There's so much misinformation here about the perceived advantages of higher octane fuel.I mostly use 87, but every once in a while Ill "burn out the crap" with some 89 and a bottle of injector cleaner. It seems to work. When I was in high school, I had an 1985 V6 Camero, and I worked at the local airport. Once a month, I ran the tank almost empty. On the way to work, I would stop and put half tank of the best gas on the market. Then, once I got to work, I filled the rest of the tank with 100 low-lead avaition fuel!!! WOW!!!!! I tell yah, the tank only lasted a couple of days, but damn, it would take off like a rocket! Only thing was, it was a little smelly, and I had to replace the plugs once a year. But, it was alot of fun! Of course, that was beofre all the fancy compterized emissions systems. Can you imagine doing that to todays cars? HAHAHAH!!!!!!!