Top Tier Gas

[15 Z71]

Not sure about this,but my dealer told me I should only use this fuel. Have any of you heard of only using top tier certified gas only? He told me it will clean and keep valves clean. Any thoughts on this? Or is it just B.S.?

[Doobs41378]

Do you have a 6.2? I know 6.2 are supposed to take top of the line gas.

[txab]

You may already be buying TT fuel now.....

 

http://www.toptiergas.com/

 

http://www.toptiergas.com/retailers/

[diyer2]

BS IMO.

The facts:

Millions of vehicles in use today are not using it.

Then again it can't hurt.

I have a Costco real close that sells Top Tier, I use it. The sign on their pumps say it has 5 times the amount of cleaner than the gov. standard.

[15 Z71]

Do you have a 6.2? I know 6.2 are supposed to take top of the line gas.

I have the 5.3

[15 Z71]

BS IMO.

The facts:

Millions of vehicles in use today are not using it.

Then again it can't hurt.

I have a Costco real close that sells Top Tier, I use it. The sign on their pumps say it has 5 times the amount of cleaner than the gov. standard.

I have never heard of it. I'm at 9000 miles and going to start using it. Like you said can't hurt.

[awright2009]

It's a set of additives that GM certifies that goes above and beyond the government standards. They sell it at quik trip, so I usually fill up my corvette with premium there and would do the same if I had the 6.2L V8 truck, but that said I usually stick ethanol into my 5.3L truck from Kroger. I wouldnt worry about it too much, but it's good to run a tank of it every now and again I suppose

[SouthernSilveradoGuy85]

I just never fill up at a mom and pop store or anything like that. I just always figured the big companies have better gas. So I usually only fill up at places like Shell, BP, Citgo, Exxon, Marathon, Sheetz and any big name truck stop. There's probably other bigger companies, I just can't think of any others right now.

 

Also for a good while I just put in 87 and it seemed to run fine. But, then I read how people with the 5.3 have better results with mid-grade 89 and I also saw that the 5.3 has a high compression ratio at 11.1-1 I believe. So the last few tanks have been with 89 and I can't really tell the difference, but I'm hoping it's still better and that I just can't sense the difference. I was just surprised that the 5.3 has a higher compression ratio than a lot of factory forced induction engines that are out. So I can only assume that if you add force induction to these 5.3s that the boost can't be too high. I'm really hoping one day I can add a screw type blower supercharger, but I doubt it will be anytime soon.

[Doobs41378]

I have the 5.3

Me too and I just use regular 87

[Binobanbino]

Direct injection.

 

No fuel flows over the valves. So trying to keep them clean is going to take more then gas.

[Gary13]

The next question you should be asking is what the additional additives are doing to the cat and O2 sensors. I try to stay with a particular brand fuel. With all the dyes and detergents different fuel companies put in their fuels, staying with the same brand (if you can) is probably a bit easier on the sensors.

[gSwift]

If you're truly concerned with trying to keep the valves clean, you should look into non-ethanol fuel. And even then you'll sill probably get some built-up. I use an app called "pure gas" that will tell me the non-ethenol gas stations

[TJay74]

Hate to say this, but most of the smaller stations end up with the top tier stuff in their tanks as well. Had a friend of a friend who was a long haul driver for petroleum. When the tanker truck would load up they would put the additives in the tank, that entire tank though would not be needed to fill the station up so he would drop off at another store. So though the has might have been for a top tier store the local 7-11 could possibly get the rest depending on his route.

 

While it is true the DI engines use a dry air flow intake system and no actual fuel comes across the valves, the injectors still flow fuel so they do benefit from the detergents as do the piston tops, combustion chamber and valve faces.

[tallspawn]

If you're truly concerned with trying to keep the valves clean, you should look into non-ethanol fuel. And even then you'll sill probably get some built-up. I use an app called "pure gas" that will tell me the non-ethenol gas stations

Dang, not a single one in the Austin area...wth??

 

Sent From My Galaxy S6 Edge+

[Deanjo]

Not sure about this,but my dealer told me I should only use this fuel. Have any of you heard of only using top tier certified gas only? He told me it will clean and keep valves clean. Any thoughts on this? Or is it just B.S.?

 

 

According to GM it is true.

 

 

# 05-06-04-022M: TOP TIER Detergent Gasoline Information and Available Brands - (Jul 10, 2015)

Subject :TOP TIER Detergent Gasoline Information and Available Brands

 

Models: 2016 and Prior GM Passenger Cars and Trucks

United States, Canada and Puerto Rico

 

Attention: Gasolines that have met the TOP TIER Detergent Standards will

appear on the list of TOP TIER Gasoline brands at this website

under the Retailers tab: www.toptiergas.com

 

A class of fuel called TOP TIER Detergent Gasoline is appearing at retail stations of various fuel marketers in the United States, Canada and Puerto Rico. This gasoline meets the detergent standards developed by seven automotive companies. All vehicles will benefit from using TOP TIER Detergent Gasoline over gasoline containing the "Lowest Additive Concentration" (LAC). LAC is also known as the minimum detergent treat rate, recommended by the Environmental Protection Agency (EPA) in the United States and in Canada, the Canadian General Standards Board (CGSB). Those vehicles that have experienced engine deposit related concerns may especially benefit from using TOP TIER Detergent Gasoline.

GM strongly recommends the use of TOP TIER Detergent Gasoline. TOP TIER Detergent Gasoline is guaranteed not to contain harmful organometallic additives, which are sometimes used to raise a fuel's octane rating and could harm the vehicle's emission system.

The EPA and CGSB require only a minimum amount of detergent in gasoline. This minimum amount is not adequate to keep the engine running at optimal conditions for the life of the vehicle. TOP TIER Detergent gasoline contains 2-3 times more detergent than the EPA and CGSB minimum requirement, resulting in a lower amount of intake valve deposits (IVD). These IVD's can negatively affect fuel economy, emissions, and performance.

General Motors, BMW, Honda, Toyota, Volkswagen, Audi and Mercedes-Benz developed the TOP TIER Detergent Gasoline Standards and support the use of TOP TIER Detergent Gasoline by recommending it in their vehicle Owner Manuals. All seven corporations recognize the benefits to the vehicle, the environment, and the consumer. Additionally, the companies recognize that by joining together they can better address the industry concern with low fuel detergency levels and the intentional addition of metallic additives.

This is a voluntary program for fuel marketers and not all fuel marketers will offer TOP TIER Detergent gasoline. When fuel marketers make public announcements regarding that their gasolines have met the TOP TIER Detergent Standards, they will appear on the list of brands under the Retailers tab at the Home website of www.toptiergas.com

A Cleaner Engine Has Environmental and Vehicle Performance Advantages

The following engine intake valve graphics show the difference between an engine that did not use TOP TIER Detergent gasoline and an engine that did at 10,000mi (16,093 km).

Engine intake valve using Non-TOP TIER Detergent gasoline having the minimum detergent treat rate with more than 1,000mg of deposits.

Deposits (1) on the intake valve reduce fuel economy by creating a porous surface that collects wet fuel, thereby affecting the air to fuel mixture in the cylinder and releases fuel late in the combustion cycle leading to increased unburnt hydrocarbon (HC) and carbon monoxide (CO) emissions (2). Likewise fuel injectors may become restricted with carbon deposits over time resulting in an incorrect injector spray pattern and similarly increasing HC and CO emissions.

Engine intake valve using TOP TIER Detergent gasoline having a high detergent treat rate with less than 50mg deposits.

As can be seen, this intake valve is significantly cleaner resulting in optimal fuel economy and driveability performance as well as reduced emissions.

TOP TIER Gasoline Retailers - United States, Canada and Puerto Rico

Additional gasoline retailers are added to the TOP TIER list when their gasolines meet the TOP TIER Detergent Gasoline Standards. For the most up to date list of fuel marketers that offer TOP TIER Detergent Gasoline, refer to this website: www.toptiergas.com