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- Oct 25, 2021
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I'd be good with Beef wars....steaks and ground beef are ridic.I also vote in favor of gas wars.
I'd be good with Beef wars....steaks and ground beef are ridic.I also vote in favor of gas wars.
This isn't the video I saw but you were right about Shell and BP premium and I was right about Exxon regular according to this video.Exxon was half the other two in the study I saw. Regional differences? I dunno.
In reality, 93 octane burns slower, so that it doesn't ignite before TDC or spark.I use what ever gas is on sale. Period ( my cars only require 87 ). Once in a blue moon I'll throw in 93 if on sale. Noticed it burns much faster than 87. So, screw that . 87 is 87. They add the additives at the station or the depot. My bro-in-low trucks gas and that's how it works. I throw in a bottle of Chevron and dry gas every now and again to clean things up, and get moisture out. Only use the red bottle of HEET. That is the real isopropryl alcohol that removes moisture. The yellow bottle does squat. This ethanol fuel sux anyway. Now I heard they want to increase the percentage. GREATMore black tailpipes. Garbage corn liquor they're feeding us. LOL
This isn't the video I saw but you were right about Shell and BP premium and I was right about Exxon regular according to this video.
I use only regular and a lot of Sunoco, Valero and Shell because they are convenient but if I have a choice I try to use Exxon.
It doesn't burn any slower nor any faster, nor is it cooler nor hotter. It resists pre-ignition better.In reality, 93 octane burns slower, so that it doesn't ignite before TDC or spark.
TT does not publish test results either. They do publish a spec - but were left to faith they actually test and the stations passed. But its essentially the same things what your saying.
So in reality TT and BP are the same - so believe one, both or neither - its all seemingly blind faith?
I tend to lean towards TT or BP, but in reality the US refineries are so heavily regulated and fined for operators passing wind at the wrong time of day, I can't imagine any of them are not meeting the generally pretty strict EPA standards
Invigorate 1 (National Generic Certification) |
Invigorate 3.0 (National Generic Certification) |
bp is the only non TT fuel I'd consider using indefinitely (see my siggy) since they've been in/out of TT. However, I too would like to see some test data supporting bp's claims.
Let's actually go a step further...I'd like to see some virgin fuel analysis that'd cover things like:
- ethanol concentration
- additive concentration by element/compound, including:
- detergents
- friction modifiers
- antiknock compounds
- flash point
- ???
That way, we can really start over-analyzing another engine fluid![]()
Yes, exactly.At a certainly point it's going way into obsession. Fuel is for the most part a fungible commodity regardless of how much marketing makes it sound like Brand X is unique.
However, as an aside, what about the quality of Arco fuel. The Gods say that it has been blessed. But which Arco? The one on the West coast, that at least in some regions is the marketing arm for BP? Or the Arco in the Midwest that is operating under the auspices of Marathon Oil, which is either under the ownership, or about to be under the ownership of Conoco Phillips?
Guess the best advice for fuel brands is that if you like one, burn it.
They can use what the EPA says they can use. Top tier simply re-states it.suppose both parts of the Arco brand operate independently, but have agreed to use an additive meeting Top Tier requirements. I would think it doesn't have to be the same.
They can use what the EPA says they can use. Top tier simply re-states it.
"4.2 Deposit Control Additive Requirements. The deposit control additive used to meet the performance Standards described in 4.3 shall meet the substantially similar definition under Section 211(f) of the Clean Air Act. Also, the additive shall be certified to have met the minimum deposit control requirements established by the U.S.Environmental Protection Agency (EPA) in 40 CFR Part 80. Lastly, the additive shall be registered with the EPA inaccordance with 40 CFR Part 79."
Yes, but all of that simply says what I stated in post 52 - all TT can do is add more of their detergent add pack. That in the end is all TT says. Its not some secret sauce. Its extra ketchup.That's part of it. It has to minimally meet the requirements under the Code of Federal Regulations. But that's a legal requirement for gasoline sold in the United States anyways.
There's 4.3, which is their more stringent requirement than the EPA.
4.3.1.3 Demonstration of Performance. The base fuel from 4.3.1.2 shall contain enough deposit control additivesuch that IVD is no more than 50 mg averaged over all intake valves. This amount of deposit control additive shallbe the Minimum Treat Rate. Results for individual valves and an average shall be reported. The unwashed gum levelof the fuel containing deposit control additive shall be determined according to ASTM D 381 and reported.4.3.2.3 Demonstration of Performance. The base fuel from 4.3.1.2 treated with additive at the concentrationmeeting the standard found in 4.3.1.3 shall not result in more than 140% of the average CCD weight for the base fuelwithout additive.4.3.3.2.1 Demonstration of Performance. A pass shall result in no stuck valves during any of the three cold starts.A stuck valve is defined as one in which the cylinder pressure is less than 80% of the normal average cylindercompression pressure.There are actually three possible test methods specified in federal regulations - Top Tier, CARB (California Air Resource Board), and EPA BMW. There can also be alternative test methods.
§ 1090.1395 Gasoline deposit control test procedures.A gasoline detergent manufacturer must perform testing using one of the methods specified in this section to establish the lowest additive concentration (LAC) for the detergent.(a) Top Tier-based test method. Use the procedures specified in ASTM D6201 (incorporated by reference, see § 1090.95), as follows:(b) CARB test method. Use the procedures specified by CARB in Title 13, California Code of Regulations, section 2257 (incorporated by reference, see § 1090.95).(c) EPA BMW method. Use the procedures specified in ASTM D5500 (incorporated by reference in § 1090.95), as follows:(d) Alternative test methods.(1) An EPA-approved alternative test method may be used if the alternative test method can be correlated to any of the methods specified in paragraphs (a) through (c) of this section.(2) Information describing the alternative test method and analysis demonstrating correlation must be submitted for EPA approval as specified in § 1090.10.
Yes, but all of that simply says what I stated in post 52 - all TT can do is add more of their detergent add pack. That in the end is all TT says. Its not some secret sauce. Its extra ketchup.
So were back to whether you believe BP adds the TT minimum detergent like they say they do. There is nothing else to debate.
The only other thing TT really states beyond government regs is they will have a minimum of 8% ethanol. Zero is my preference so fine with me if BP doesn't.
I absolutely guarantee you the base fuel is the same for TT vs non TT. The refinery doesn't deliver one fuel to TT and one to the others. They produce fuel per EPA specs and it gets dumped into the Colonial Pipeline and sold to everyone between Houston and NYC. Its all the same.That's not a requirement for the fuel delivered to the consumer. That's a requirement for the base fuel used in the testing. You can read the requirements. Most of it is a laundry list with minimum concentrations of components that will theoretically result in a reasonable amount of deposits. I don't believe ethanol necessarily produces more deposits. Olefins and aromatics will. Not sure why they limit the amount of sulfur though. If you read the section on base fuel, a lot of it seems to just be to have a representative fuel for the testing. And there's a requirement that the fuel produces a certainly amount intake valve deposits.
4.3.1.2 Base Fuel. The base fuel shall conform to ASTM D4814 and shall contain commercial fuel grade ethanolconforming to ASTM D4806. All gasoline blend stocks used to formulate the base fuel shall be representative ofnormal territory refinery operations and shall be derived from conversion units downstream of distillation. Butanesand pentanes are allowed for vapor pressure adjustment. The use of chemical streams to accelerate deposit build-up are prohibited unless approved by GM engineering in advance of engine testing. The base fuel shall have thefollowing specific properties after the addition of ethanol:1. Contain enough denatured ethanol such that the ethanol content is no less than 8.0 and no more than 10.0volume percent as measured by ASTM D 4815 or D 5845. In markets with lower fuel ethanol content, fuelmatching the market conditions of fuel ethanol content can be used up on approval.2. Contain no less than 8 volume percent olefins as measured by ASTM D 1319 or D 6729.3. Contain no less than 15 volume percent aromatics as measured by ASTM D 1319 or D 6729.4. Contain no more than 80 mg/kg sulfur as measured by ASTM D 2622 or D 5453.5. Produce a 90% evaporated distillation temperature no less than 290F as measured by ASTM D86.6. Produce IVD no less than 500 mg averaged over all intake valves.7. A Certificate of Analysis showing both the detailed test fuel composition results and source shouldaccompany the additive results package. This certificate should also contain the unwashed and washedgum level of the base fuel according to ASTM D381.