Thread: Different results with Different Brands ?!

Check the O2 sensor on that thing^

I work at a BP, I have to break you all the news. All fuel is pretty much the same. It hasn't always been that way, but it is now (government regulations). BP invigorate is a marketing scam, we actually fuel from drivers that deliver to a hand full of other gas stations (like Circle K and some others)

Come winter I think they change the mixture to help prevent freezing of the fuel also, this doesn't help mileage, and a cold motor runs rich, this effects guys with smaller commutes more than guys going long distance

There can be differences in mileage depending on how old the fuel is, as well a the temperature (ambient and tank temperatures) which can change how much fuel you get and how much the car burns

Funny that you mention that, I was changing the oil on the G20 on Saturday. This things exhaust is a rust bucket. I noticed something really familiar... the exhaust ground on the cat ripped off.

Now if you have read my other 4-wire O2 sensor thread you will know that I do know quiet a bit about this topic

Anyway, I found it interesting because the rear O2 sensor is a 4 wire one, thus it doesn't care about the exhaust ground, the front one on the other hand is 3 wire, but it is fairly close to the block, thus should be getting a good ground from the block. Either way I think I'll be ordering another 4-wire O2 sensor and eventually putting the SSAC header to replace the rust bucket exhaust haha...

no comment on all fuel being the same>?

I have always believed that all gas comes from the same place and it doesnt matter. There are to many variables to calculate what gas station you get better gas from. The gas can be sitting in the stations tank and change with temps and all that crap.

What do you mean? On me using the same fuel or all fuel being the same?

all fuel being the same comming from the same tank comming from the same pump station! lol

it seems like no matter what shell station i goto it makes my cars smell like rotting gas 2 se-rs an 1 se plus my 77 datsun i never really checked into gas milage but the smell drove me crazy, so only chevron for me thanks.. i worked at one in oregon (oregon people pump your gas for you) and i learned alot about chevron gas from the tanker drivers :P so i only put chevron in the se-r's the se gets whatever.. the datsun gets exxon, chevron or circle K, its really odd i know but my nose dont lie, especialy with 4 different vehicles lol