The best quality gasoline

Carolinatj906 · 01-14-2010, 01:01 PM

This goes for any car not just jeeps but there's been a lot of talk about which gas station has the best quality gas. I've been curious to if there is any difference to buying gas from marathon since it offers 100% gasoline and buying gas from any other gas station that has 10% ethanol in its gas such as Bp and citgo.

VanBCguy · 01-14-2010, 01:03 PM

Hmmm...this would be interesting to know. Subscribed.

ClimbStuff · 01-14-2010, 01:12 PM

BP and Citgo are junk.... I've blown motors with gas from both places. Sunoco is what you want if its available. Thats the only thing I miss about the midwest... Sunoco fuel.

**thantos858** · 01-14-2010, 01:14 PM

Gas is gas its when you add all the other crap to it that companies do that makes it different. I would buy the 100% gas just because ethanol is a joke and waste of money. As for the question of what gas is better I have always been told its best to switch from time to time so you don't have a build up of one companies additives over another.

ClimbStuff · 01-14-2010, 01:38 PM

Quote:

Originally Posted by thantos858

Gas is gas its when you add all the other crap to it that companies do that makes it different. I would buy the 100% gas just because ethanol is a joke and waste of money. As for the question of what gas is better I have always been told its best to switch from time to time so you don't have a build up of one companies additives over another.

Gas is not gas. When you build engines for drag cars, they are like your kids. You don't just let your kids eat and drink anything do you? No. I've been a strong supporter of Sunoco ever since I blew identical engines on other types of fuel. The two the blew, were detonation caused... one on its 4th pass, the other on its 13th. The engine with Sunoco, made over 700 passes on nitrous before letting go due to a timing chain failure. Gas is not gas... if you truly believe that, you don't ever drive hard enough to know the difference.

FYI - I blew my own engine once on its very first pass using BP fuel. After rebuilding to the same specs and using the same tune, and running Sunoco only, it finally lifted the head after 471 passes, and let go.

Carolinatj906 · 01-14-2010, 03:03 PM

Well I've always trusted Sunoco but we don't have one in our city limits. You'd have to drive all the way to Darlington or Marion to find one. I but marathon gas bc it has STP additives and i kinda like the idea of having 100% gasoline. I have now idea how it is for y'all but i live in and average sized city with only 3 gas stations that offer pure gas. Every other gas station adds 10% ethanol to make it a little cheaper.

**thantos858** · 01-14-2010, 04:54 PM

Quote:

Originally Posted by ClimbStuff

Gas is not gas. When you build engines for drag cars, they are like your kids. You don't just let your kids eat and drink anything do you? No. I've been a strong supporter of Sunoco ever since I blew identical engines on other types of fuel. The two the blew, were detonation caused... one on its 4th pass, the other on its 13th. The engine with Sunoco, made over 700 passes on nitrous before letting go due to a timing chain failure. Gas is not gas... if you truly believe that, you don't ever drive hard enough to know the difference.

FYI - I blew my own engine once on its very first pass using BP fuel. After rebuilding to the same specs and using the same tune, and running Sunoco only, it finally lifted the head after 471 passes, and let go.

If you can prove to me it was the fuel then ill believe that. The base of all gas is almost identical. Some of the changes are from where the oil comes from but the base is still the same based on octane and grade. They also sell the base to each other to make a profit. It doesn't change much until you add all the additives into the mix that's where each station, region, state and country is different also how much containment they allow to stay in the base blend. My car runs a lot better with gas out of the state than the crap they sell in California its all the additives that are in the gas we pump.

ClimbStuff · 01-14-2010, 05:03 PM

Quote:

Originally Posted by thantos858

If you can prove to me it was the fuel then ill believe that.

Read carefully now...

Quote:

The two the blew, were detonation caused... one on its 4th pass, the other on its 13th.

The fuel quality was garbage. The same exact OEM heads were used with modification made by CNC only to the outer 1" of the intake and exhaust ports. The combustion chambers and valves were left stock for this exact reason. When you use a flat forged piston, with cylinders matched to each piston/ring assembly, and a CNC matched copper gasket... there really isn't much chance of getting a hot spot anywhere. And no, there were no burs on the valves, or cracks anywhere in the chamber. There was no visible defects to the spark plugs, no high speed glazing, no build up in the ports from the nitrous... nothing. I even tested the flow rate of the aux fuel pump and fuel solenoid to verify that they worked perfectly... I did a data log on my voltage to see if I had a loose cable or a ground somewhere... I pulled the EGT's on each cylinder to look for a missfire... nothing. Trust me, it took me several days to eliminate every possibility other than fuel. My conclusion was that engine was mechanically and operationally perfect just 90ft before it blew.

The second, I did all the same detective work, and concluded the same. It was 100% when it left the line, and 0% at about 200ft.

Nick B · 01-14-2010, 06:11 PM

Here ya go : Top Tier Gasoline

Joe Diver · 01-14-2010, 07:21 PM

Here's how I understand gas.....my brother is a fuels dealer...he prices gasoline daily through the hub distributers then purchases gas for tankers to take to various stores. He also purchases gas for storage depots owned by his company for resale in outer areas.

There's 2 main sources of gas...the refineries and a pipeline system. You can buy gas from the refineries, or purchase from the line. Pretty much the same thing, except the line is pushed by all the refineries. You need a place to store your gas...you'll see these places (if you notice them at all) as big tank farms off the road, and lots of trucks going in/out. Various trucks, from unmarked to Texaco and Shell station refillers.

At this point, gas is gas is gas. Only the octane ratings are in effect.

Now, someone buys his gas. Be it Texaco, Shell, Chevron, Citgo, Joe's gas station...whatever for the local gas stations. Note that the profit from the big boys is not much....they don't sell from the refinery or pipeline and then pay a huge markup, only a fair use profit for transporting and storing their fuels to outlying areas. It's selling to the independents that turns the profits.

Now, gas is no longer "gas is gas".....folks that buy it start adding stuff to it....Chevron adds Techron....Shell adds that V power.....and so on and so on. Some dilute with etahnol (actually, almost all do).....then this mixed gas goes to the final location to be dispensed to the consumer.

Now, I'm just an IT guy so all I know is what I've picked up from my brother over the years, so I may have it right, or may have missed a little something here and there, but I think the above is pretty much the overall general idea of how it works, so when someone says "gas is gas" they are correct, up to a certain point in the distribution process.

**Unlimited04** · 01-14-2010, 07:40 PM

my Jeep gets whatever is closest and cheapest when I look down and notice i need gas. usually conoco, sometimes shell, maybe a local mom & pop small time place, u-pump it, whatever...

daggo66 · 01-14-2010, 08:34 PM

Costco or Sam's depending on which side of town I'm on or which way I'm going. Usually 8 to 10 cents cheaper than anywhere else.

ritjobbie · 01-14-2010, 08:58 PM

BJ's is cheapest in town, but I prefer the cleanliness of my local Hess stations. I'll pay an extra few cents a gallon if there isn't vomit on/in/near the pump.

**Whybu1** · 01-14-2010, 10:00 PM

Theoretically you should get better mileage from the 100% gas vs the blended with ethanol. Not a big enough differance to notice in a Jeep however.

halpeters · 01-15-2010, 03:15 PM

There is no way to compare Gas Brands, and the Brand name means nothing.

Gas formulas vary based on regional requirements, state requirements, seasonal requirements and others.

Your favorite brand that you buy in the summer is a different blend from the winter, and different in other states...

I have no idea what is a good or bad brand, or forumula blend.

If I had a race engine that needed specific octane requirements, I would never trust pump gas, as it is always changing...

If you want to know what you are really burning, you will need to buy "race gas" with a specific blend, or AV-GAS, as it meets very specific requirements, but contains lead... No cat. converters...