How important is using tier I gasoline?

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"How important is using tier I gasoline?" Very,and Not it looks like.

It looks similar to saying all oil is the same, because I used the cheapest oil for thirty years and didn't have any problems. Versus finding out the real differences, if any, like is done here.

Well a newby like me can't say too much anyway.
 
Let me summarize what I've learned about gasoline:

1. Yes, top tier and "other brands" do all come from the same place and is technically the same gas. The DIFFERENCE is in the additives and this is important. The minimum detergent level mandated by law is inadequate and is mostly just cheap carb cleaner. I use Top Tier gas because I want the added detergents and the price difference is not that great.

2. Buying gas from "unknowns" like grocery store chains and so forth will not have the detergency as Top Tier - however it goes beyond that. If the actual QUALITY of the base gas is good, then it may be fine to run a cleaner to offset that gasoline...but the big problem lies in the base gas quality. Some of these cheap stations use gas that the more reputable stations WOULD NOT buy. That is a bigger problem than the lack of additives.

My recommendation is to use gas from the busiest Top tier gas station. If you want cheap gas than also buy from a bust station and spend the money on additives yourself a few times per year. But why try to clean dirt when you can prevent it with Top Tier???
 
Originally Posted By: GMBoy


My recommendation is to use gas from the busiest Top tier gas station. If you want cheap gas than also buy from a bust station and spend the money on additives yourself a few times per year. But why try to clean dirt when you can prevent it with Top Tier???


This makes the most sense!
 
Originally Posted By: GMBoy
Let me summarize what I've learned about gasoline:

1. Yes, top tier and "other brands" do all come from the same place and is technically the same gas. The DIFFERENCE is in the additives and this is important. The minimum detergent level mandated by law is inadequate and is mostly just cheap carb cleaner. I use Top Tier gas because I want the added detergents and the price difference is not that great.


Yep! Top Tier only for me. I have been using only Shell for years (unless on a road trip and can't find it). I now own a DI engine, and I think it is going to be even more important to run only Top Tier in those engines.
 
Originally Posted By: whip
Other than Sheetz, all of the gas is delivered by a local distributor. I find it hard to believe that there is a difference in the gas coming out of those trucks.


Hydrocarbons yes, additives no. Plus, point of sale water content, filtration, etc can vary.
 
It's all blended at the terminal. The truck drivers have a key for each brand they put into the dispenser control that introduces the additives into the truck.
 
I see different refineries run by differently owned companies. I don't think anyone can disagree with that observation. I find it impossible to believe, without any proof except "I say so", that they mix their products all together, pipe it somewhere, then a truck driver with a key blends it at the truck. Then it is distributed and broken up into brands again. That seems, excuse me for saying, about as far fetched as anything I have read on these boards.
 
Originally Posted By: goodtimes
I find it impossible to believe, without any proof except "I say so", that they mix their products all together, pipe it somewhere, then a truck driver with a key blends it at the truck. Then it is distributed and broken up into brands again. That seems, excuse me for saying, about as far fetched as anything I have read on these boards.

Believe it. Fuel distribution operations don't belong under the same classification as Santa Claus, the Easter Bunny or the Tooth Fairy.
 
That's how it works, even thought I just "say so".

My explanation must have been good, because you got it perfectly.
 
To goodtimes, believe it. Gasoline is generally considered a fungible product, meaning it is made to a set of general performance standards, but how it gets there is up to the individual refiner and may very based on their refining process and feedstocks.

In my part of the world, there are only two refineries in town, and the rest are delivered via pipeline, yet over 90% of fuel used here comes from only 4 refineries (Flint Hills Pine Bend, The former Marathon Refinery in St. Paul Park, via pipeline from Superior, WI, and Mandan, ND) Yet we still have many major gas brands here - without them providing major refining capacity.

Another example: Virtually all gas sold in Northern MN stinks to high heaven and comes from one refinery - yet you get the same thing at all brands.

As for as top tier goes, it is a marketing issue more than anything in my eyes. I run everything I own on non-top tier and have never had an injector/fuel system cleanliness issue with over 500,000 miles on the present fleet. Your mileage may vary...
 
I used to work at a convienence store that sold Gulf branded gas. From a Sunoco refinery.

Used both TT and non TT in the Z4. Runs better with the TT.
 
Originally Posted By: TimVipond
"Where does my gasoline come from?"

http://www.eia.gov/energyexplained/index.cfm?page=gasoline_where

Hope this helps.


That explains it better. Thanks for the rational, non-personal answer, and proof to make me say it IS possible, and NOT far fetched. The description does say one is not necessarily getting xyz brand. It doesn't say one isn't getting it either. And it doesn't say all end use gas is the same, it says they aren't, due to the small amount of additives. I'll take those small additives, right now I use Shell ones if possible. Others do otherwise, like so many things.
 
Back in my HAZMAT study days in the 80's, looking at the continental gasoline pipeline-to-fuel-farm storage tanks, it was all unleaded gasoline, diesel, heating oil, period. AVGAS, JP-4 and 5 was routed out to the bigger airports on a separate leg to those storage tanks and anti-icing adds are added there.. For MOFUELS, additives, detergents and octane boosters were added at the head the delivery truck loads from at the Farm. Shell has a loading head, Texaco/Star, Mobil, they all have their own and did their adds straight into the transport truck. Now, that was in the mid-eighties. Curious I am these days at what point straight gasoline becomes E-10. Does E10 come up to the East Coast through the continental pipeline, or at the destination-end, the storage tank farms?

My Hyundai Touring SE gets brand name, but plain old regular 87 octane, mostly Mobil regular. There are very few Shell stations in New England off the interstates. New England seems to be very Mobil-Centric with a smattering of Sunoco and a fair number of Gulf stations, dealing, presumably, Chevron product. There are a few Citgo stations, but until the seizure of Citgo stations in the U.S. to cover the defaults down "there", I avoid Citgo just because. The rag-tag no-names I pass em by, again, just because.

A curious thing I do see everywhere is folks gassing up plain old non-turbo econo-boxes with high test, to me, a pointless waste of dough unless I'm missing something? The stuff being 3.45 a gallon vs. 3.20 doesn't seem to deter them, either..
 
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I drive NA 4 cylinder engines. I buy gas based on price mostly. If I need gas and I'm around only name brand gas stations, the cheapest gets my business. If there is a discount gas station like kroger or walmart, I go there. I notice no performance difference. I do fill up when there is only a quarter left in the tank. my wife does not do this, so I end up filling her tank. it's probably her evil plan to let me fill up her car all the time.
grin.gif
 
Originally Posted By: Concours14
Curious I am these days at what point straight gasoline becomes E-10. Does E10 come up to the East Coast through the continental pipeline, or at the destination-end, the storage tank farms?

Ethanol has to be transported by tanker, either rail or truck. No pipeline transit.
 
I have yet to see any objective proof that cheaper gas causes problems. For as long as I can remember it has been pure conjecture of "oh that's lousy gas, it's totally watered down and made my car run bad."
 
Here is some interesting reading:
http://www.chevron.com/products/canada/ourfuels/trusttech/bigthree.aspx

http://www.chevron.com/products/canada/ourfuels/trusttech/toptier.aspx

Personally I use top tier gasoline in any car I intend to keep. A family member gave me an old Plymouth Voyager. He used the cheapest gasoline he could find. It ran very poorly. I found 2 of the 6 injectors in very bad shape.
YMMV!

I would rather spend an extra nickel a gallon for Chevron or Shell gas instead of buying cheap stuff and adding fuel cleaners/additives.
 
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