We get screwed since Shell uses 10% ethanol(in our areas) AND about 8x more than the standard amount of detergents in their gas, thus making them a Top Tier Gas Station. 8x More detergent(then your standard gas station.. we will say Hess) + 10% Ethanol = < Gas

at least y'all get 93 out there... were stuck with 91... Also I just started premixing which has killed my economy but made the engine run allot smoother, not sure what I should do about that.

What and how much are you premixing?

Well...I was refering to WI when I said Shell 93 does not have ethonol....it says in BIG LETTER - 100% Gasoline for 93, and upto 10% ethenol for 87,91

Sorry to hear you guys dont get it your areas, but I assume we wont have it for long either.

ManPigBear? lol that is funny!

lol - so it's a 150%? shouldnt it be 1/3 man, 1/3 bear and 1/3 pig

Oh who care...lol

What it should be and how it is referenced in South Park are two different things. I refrenced South Park since it makes it even funnier.

MMO 1/2 oz per gallon...

Most people use between 4-8 oz of premix per fillup(full tank). I use about 5oz since thats the size of the lucas additive bottle. I bought lucas just for the bottle, used it and refill it with MMO. Makes it easier to just grab a small bottle and dump it in to your tank at fillup. Anyway, I have not noticed a decrease in my mpg because of premixing, only from using different gas.

I do the same thing but I premix with 2 stroke oil from west marine. Buy a giant jug and refill the small bottles so when I'm gassing up, I can just dump one. It's more complicated in NJ because we're not supposed to pump our own gas. I do anyway about 1/2 the time though

Huh? You can't even pump your own gas? What kind of crazyness is this. The only fuel we can't pump is race fuel and that because it's illegal to put in a street car, ofcourse everyone does any way though.

NJ and Oregon have laws where only the attendent can pump the gas. Both states are all full service.

Sounds like just another excuse to dig into your pockets to me. Tell you what though go ahead and spill a bit of fuel on my paint and see what happens. I suppose they have laws for that as well.

The idea behind it is that it creates more jobs (gas station attendants)
The prices in NJ are one of the cheapest in the country. I'm still paying $1.99 for premium. Plus, if you really want to pump your own gas, it's not like the attendant is gonna complain or anything.....

Ah so its not law just a courtsey well that's cool I guess. Fuel here is not much more expensive here 2.05 but its ethanol free so we'll see who goes further on 100 dollers of gas

No, no.. it is law. They just don't care all that much. They'll do their job, but if you volunteer to do it, they'll let you

threadjack? I'm paying $2.39

anyways when you average it out I put in 7 oz's of MMO.. I noticed an immediate decrease in MPG I was sitting at 20/23 now I'm 18/20 its very strange(this I have measured over a few month's and averaged out the MPG's) however I know that the engine likes it so I'm happy to oblige.

Whenever Im in NJ, I always let them put it in, then I will take it out and lock the gas cap myself

cuz couple of times those asses didnt even close the lid right ... :(

so yeah ... Im doing it myself. when its done I just take my card back, put it back, lock it, and drive off. They dont mind. less work for them.

You can try adding less MMO to see if the MPG come back. I use about 5 oz, some use 4oz, some use 8oz. There is no magical number so dont feel as if you must use 7oz. I do agree with you though, after my first premix, I was hooked. I use about 5oz MMO on every fillup and on every few fill ups I add 2-3 oz of 2 Cycle oil aswell. Once I run out of 2 Cycle oil, I will be using FP+.

yea I'm afraid to introduce to many cleaning agents/oils the engine is sitting at 109k. unless it got replaced before i purchased it at 96k.. I'm still not sure how to verify engine replacement Mazda USA wont release the info.

MMO will help prolong the life of your engine by providing additional lubrication. Its never too late to premix. You may be able to go to your dealer and have them look up the VIN to see if the engine was ever replaced. Not sure if the ycan/will do that.

OK, 4 tanks of Shell nitrogen-enriched 87 compared with 4 tanks of Hess 87:

Shell: 895 miles / 50.7 gal = 17.7 mpg

Hess: 1080 miles / 54.4 gal = 19.8 mpg

I tried to drive my usual spirited style on both, red-lining 4-5 times on my commute, etc.

I hate ethanol. It caused my Mazda 6 to overheat and the Transmission overheated as well. It made the car run like crap and felt slower than a 1983 honda civic.

Seems about what I am seeing between the Shell and some BP(due to it being ethanol free). Both 93 octane and I'd say the Shell is about 20 miles or so to the tank lower. I still need more data to know for sure.

BP is ethanol free?
I might have to switch brands... Too bad theres no BP near me

I had worse gas mileage when it first came out and switched to chevron. But, I've since switched back mostly because of price.

I'm happy to report that for some reason I'm getting about the same gas mileage as the old formula now.

I have no idea why.