mrclrider

I was wondering what you guys thought was your favorite manufacturer of gas where you live and do you always try and use the same octane from same gas station or what?? I just got my 01 s and have had one tank of gas through and got about 350 miles to that tank, (BP Gas) and i'm on my second tank, same octane and all but from a different BP. I don't think my driving patteren changed from this tank to the last one but i'm looking at only getting 280 out of this tank, WTF?? Both tanks where after I changed plugs to Bosche +2's and took out stock resonator. The only other change is that its been just a little warmer here in Cincinnait Ohio?? I'm looking forward to your responses....

cltypeSLOW

chevron and diamond shamrock i run regular unleaded usually...gas prices are just getting to high for the expensive stuff but even running 87 octane i always get over 325 to a tank and i hit vtec quite often

RaviNJCLs

iTrader: (4)

I usually get BP/Amoco. I would get about 250 miles per tank in the city and close to 380 to 400 on the highway. I don't usually do the speed limit and driving in NYC is murder on gas.

babyblue

Sunoco Oct 94, around the same mileage as ravinjcls ^^^

123456SPEED

I usually go for Chevron or Exxon. I always bought premium 92-93 octane, but with the prices now I may start mixing in mid-grade.

As I have a 6 speed, they get less mpg than the automatics. about 18-20 city 24-25 hiway.

NSXNEXT

iTrader: (2)

The kind after I have this.

car_lost

amoco tastes the best.

Shawn S

Nothing but Mobil Super for my car.

mrclrider

so those of u that mix in the 89 oct don't notice that big a difference or do you, is it just like once a month when you happen to need to get the cheaper stuff b/c gas is high??

car_lost

big money baller!

20/m/miami... wanna chat?

NighthawkBlue

[QUOTE=mrclrider]I was wondering what you guys thought was your favorite manufacturer of gas where you live and do you always try and use the same octane from same gas station or what?? I just got my 01 s.....

mrclrider,

It appears we don't know for sure what the oil boys really have coming out of the gas pumps. It's like the mods and others have informed me, just see how your car responds and if good like you had at BP, stick with it.

Friends at the Long Beach CA refineries have told me when various gas companies truck tankers pull up to be reloaded, it all comes from the exact same tank/spicket. Another friend followed a truck tanker around. It went and unloaded at 5 completely different brand stations!

We have a consumers group here that is very helpful. I asked them:

When one buys gas, does one really know what *brand* gas is coming out of the pump? Where it really originated from?
Does UCAN (the consumers group) think any gas is better quality then others?

UCANs response:
When you buy independent gasoline it is usually Shell gas. Arco frequently sells Chevron gas and vice-versa. However that is for the raw blendstock known as CARBOB. CARBOB gas is 84 Octane before it is boosted with a 6% blend of ethanol and various turpentines that are formulated by season. After that, the refineries add their own special ingredients, usually cleansers such as Chevron's "Techroline." Cynics say this stuff is just pixie dust designed to create a chemical flag to stop dealers from buying gray market gasolines. In other words, you really don't know what you are getting unless you pour it into the tank yourself.
I have a hobby vehicle with a somewhat rare ultra-high compression engine with a 11:1 ratio.

I buy the cheapest gasoline I can. If the pump runs slowly I go to another station because it suggests that the filters are clogged with gunk - and there is a lot of gunk in fuel tanks. Any additives I use are poured in after the fact. That way I know my girl is getting the good stuff because I put it in myself.

Shawn S

It’s like 8-cents more a gallon then mid-grade. I don’t see the issue.

car_lost

lol, relax... i was joking hence the little tid bit after that

mrclrider

so how many of us have done the gas mileage comparison with 87 and 93, or do some of us not car about the gas mileage and are only concerned about the performance, but from stated ^^^ before, if its all out of the same pump shouldn't we get the same performance no matter what??

gsrblack

I usually put in 91 Chevron....there are a couple stations here that are cheaper than most other stations. Arco is the only other one that is cheaper than the stations I go to, but I stay away from them as I've had bad experiences with performance.

NSX-Tuner

Chevron 91 octane

IHmike345

Is there any long term engine benefit to using Premium gas over Mid-Grade? What are the benefits of using Premium over mid-grade? I thought it was detrimental to our engines to run anything less than the manufacturers premium specification?

mr5parkle

iTrader: (1)

91 octane, shell it's whole life except for 2 rare occurances where i desparately needed gas, so twice my car had 76.

CBR1100XX

Wait a second, did someone say 87 octane in their type s and in the vtec? That should cause issues with pinging right?

cltypeSLOW

ya that was me...my car seems to run fine i dont notice any performance differences with 87...i dont think a butt dyno could really notice anything that small. maybe an actual dyno would show gains with higher grade fuel but it would be small

Pure Adrenaline

iTrader: (2)

Shell V-power. I used to only put in Mobil premium, but I had to put in Shell one time because I was low on gas and there was no Mobil station.

After one tank, I was sold. I've been using only V-power since then. It's a few cents more, but it yields better fuel efficiency than Mobil, and my car just drives smoother now. It could be psychological, but then again, I wasn't expecting anything when I put it in for the first time.

6MTpromises

V-power for the vtec

trancemission

Same here

andyjl

i usually use 76 gas (i think it is called unocal elsewhere??) usually if not 76 i'll try to fill with mobil, then chevron, and i try never to use shell, shell is crap (when i used to use it, my car felt so sluggish)

Moodist

iTrader: (2)

I don't know about anyone else but I have never really gotten great MPG with Sunoco 93 octane. I thought it might be the way I drive with its gas, but I have gotten their gas a couple of times and my mpg is never as good as say Exxon/Mobil.

That being said, I usually fill up with Wawa gas from a particular station. No issues so far and MPG is pretty good.

fuzzy02CLS

iTrader: (2)

Don't care. Whatever is cheapest.

sexytypes

Shell V-Power 93 octane

CBR1100XX

Exxon Surpreme works for me. Chevron secondary and never anything other than those two

clswhite

Methane or natural gas! :whocares:

bigguyonbike

daily driving - shell v-power 92 oct

track - sunoco gt plus unleaded 104 oct

GreenMonster

I use Hess, mostly because it's convenient. Hess is right off the highway in my hometown.

phipark

I tend to use Shell V-Power 93 octane.

BadAcCLS

Nothing but Shell V-Power 93, or Mobil Super, I try to stick to shell though. If I'm planning on a trip to the local car hangout to mess with people I'll put about half tank of 76 Racing gas 103 Octane. Rumor has it that the higher octane spike tricks the comp to advance timing, and increase power slightly. I do notice a difference believe it or not.

P.S. - Anyone in the area going to steak and shake tonight. It's nice out, and I know Jim is out of town, but what about evilone? I think that was the other guy's name. Anyone in the area?

dmckeown

I use 93, and prefer Exxon/Mobile.

BTW, did anyone hear that Exxon supposedly doubled their profits this year. Read the full article at http://www.timesargus.com/apps/pbcs.dll/article?AID=/20050324/NEWS/503240301/1021

Tosh

It is a waste of money to use an octane rating above the minimum needed to prevent pre-detonation (knock or ping). Our engine doesn't know what octane it is burning except to advance the ignition when it senses (hears) knocking. There is no more energy, power, etc. in higher octane gasoline. The oil companies were fined and had to apologize for false advertising for making it sould like there was. Now they've toned down their ads. However, there is less energy in ethanol, which is what Shell around here mixes in to keep the prices down.
Personally I avoid ExxonMobil because they represent everything that's evil in this world, and I would encourage everyone else to do the same. But otherwise I use 89 octane and avoid ethanol. Maybe if the engine is hot it will ping for a second at high load and low revs, until it downshifts, but I can live with that. The only fuel additves I use (twice per year) are those that specifically say they dissolve water to prevent fuel line freeze. Ironically, ethanol also happens to do that....

dmckeown

I don't know why I've always preferred Mobil. I only use 93 because not all gas stations in my area have 91 and I try to stay consistent. 91 is the lowest recommended in my owner's manual, and I'm not taking any chances, however slight.

michiamo

The reason they are so profitable is that their practices have no regard for the environment or worker safety. I'll run out of gas before I'll put that crap in my tank!

Every car I've owned has run best on Amoco 93. If that's not available, I'll use Shell V-Power, nothing else.

EricL

Perhaps things are a bit different in So Cal...

There have been a number of folks with various flavors of TLS, CLS, etc that had pinging issues when burning 91 octane (didn't get all of the brands). Of course, if you can run without the extra expense of unneeded octane, more power to you.

OTOH, I spent a fair amount of time in the pre-two-dollar gas days trying various mixes of 100-octane 76 added to 91-octane Shell (now V-Power). My CLS (H/I/light wheels) found its best cold temp 0..60 times with a 95-octane mix. I ran the tests many times in the same location (two-way averaged) and kept the ambient test temps in the 60- to 70-degree range. I found a loss in acceleration -- at least for my car -- when using less then 95 octane (the octane was calculated from 91 + 100 mix ratios). IMO, any octane > 95 octane will do nothing for performance in a non-F1/non-compression boosted CLS. (This is an old topic revisted.)

Now given the steep prices locally (close to $3/gallon), I don't go near the 100-octane stations and don't plan to repeat and/or continue any 100-octane purchases/tests (at least not with my CLS).

Acura lists 91 octane as the required minimum octane, but I think their sales would suffer if they even suggested that the car could benefit with higher octane (call it a guess on my part).

RE: Exon/Mobil -- we have a station that is about as close as the Shell station, but have only used it when the Shell station was getting new tanks and pumps. Every time I used the gas from that particular station (I didn't try any other Mobil stations) I lost power, got some minor pinging on 91, and got reduced gas mileage. Who knows what was going on with their supply?

I also would prefer to remember the slime embedded in the Alaska coastline. The local Shell and Chevron fuels seem AOK...

03CLSMT6

If manufacture suggest to get high grade gas just do it, our cls needs it for the higher compression motors... Plus high grade gas keeps your fuel system cleaner and it burns more efficiently in most cars..I would never mess around with trying to save a few cents per gal, if you think about it you can do more damage in the long run then saving a few cents at the pump. If your looking for good gas mileage car just buy a civic... I got 340miles on a full tank on my 03 cl, 70% highway and i usually drive like im in a hurry. Generally the blue planet gas(ie. holiday gas station), burn up quicker then the other types of places
(ie. citco, and bp) has not been too bad as well.. I think for the amount of power we get out of our cl's its pretty efficient on gas.

bateman

Whatever is the cheapest around thats 91 octaine or above. Though i do try to avoid trashy looking stations since i figure they have greater chance of dirty gas.