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First of all, I'm probably over-thinking the issue and being ****. Getting ready for a trip and thought it would be a good time to clean the fuel system with Techron. The car is a 2012 w/less than 10k miles. One large bottle of Techron (which is what I have) treats up to 20 gal. With the Vette having 2 tanks, so not sure which tank it will end up in and what tank runs 1st, I am hesitant to put the entire bottle in just 10 gal. So, it seems I have 2 options: 1. Pour the whole bottle in and let it mix with 10 gal. Then run the tank down to reserve to make sure I use the 10 gal. with Techron 2. Pour half the bottle in - going into one tank. Run the tank down to reserve and repeat the procedure. If I put the whole bottle in just 10 gal, I'm thinking no adverse effects. I'm sure someone will come up with the idea of buying a small bottle and then just dump it in and go with it.
Over thinking...probably, I just get down to less than a quarter tank & add the entire bottle of Techron & filler up & drive away, have had zero problems, I think it also helps to use Top Tier whenever possible helps keep things clean..
Over thinking...probably, I just get down to less than a quarter tank & add the entire bottle of Techron & filler up & drive away, have had zero problems, I think it also helps to use Top Tier whenever possible helps keep things clean..
I'd say this is the way to go. Chevron knows there are saddle tank cars like the Corvette. Just run the tank down, pour it in, fill it up and go.
Note: it used to be said that most of these pour-in treatments worked best when one did relatively short trips. I don't recall the exact reason but I thought it had to do with the fluid sinking into build-ups in an operating temp engine when turned off and then being burned off better on restart. Talk about thinking too much on the matter!
Two bottles too much, and you don't want to overdo Techron in super doses. There is no upside to it. Techron is an aggressive compound undiluted or in higher concentrations.
The best way to use techron is to fuel at a Chevron station as regularly as you can and just leave the bottles of Techron on the shelf.
If I understand the operation of the fuel system correctly, it recirculates gas from the tanks into each other (via the venturi in the left tank), so it should get mixed on it's own from the recirculation. But if your worried about it, add half a bottle, fill the car to 1/2 or 3/4 full and then add the other half, and then finish filling.
I've noticed that Techron has a tendency to thin out the oil, I suspect it may wash past the rings and get into the crankcase. So I always try to schedule it with an oil change cycle, so I add the Techron and then after it has all run through I change out the oil.
Oh, and by the way, Texaco got bought out by Chevron, and they now add it to their gas as well.
Techron is great stuff and I keep a bottle around for whenever I can't fill up at a Chevron/Texaco station. I'll also use Shell, Techron by itself will also build up in the system so it helps to use a couple of different fuels.
If adding Techron, I like to do it just before an oil change and run the engine to redline a couple of times to beat the carbon off the backs of the valves - then change the oil.
If I understand the operation of the fuel system correctly, it recirculates gas from the tanks into each other (via the venturi in the left tank), so it should get mixed on it's own from the recirculation. ...
You do. Whenever the fuel pump in the bottom of the left tank is running a large amount of fuel is constantly being pulled from the bottom of the right tank and sent over to the left tank where, if the left tank is full, it overflows back to the top of the right tank.
I would make sure the gauge read more than half a tank (left tank full), pour in the additive which would never be needed if you used Top Tier gas as recommended by GM, and then top off the tank. The reason I would have half a tank before putting the additive in is to make sure it isn't just sitting on the bottom of the left tank and sucked up undiluted to the engine when the car is first started. If the left tank is full, depending on density, it would get diluted before falling to the fuel pump on the bottom or it might go directly through the overflow to the right tank first. As I have just clearly demonstrated, it never hurts to over-think a simple issue.
Techron added periodically can prevent the sulfation that builds up on the sending units in the tank, and prevent failure of them. Since it's such a task to pull the tanks in this car to replace a faulty sending unit, it's worth the time and money to add a bottle once or twice a year, even if you run a top tier fuel. This E10 gas used now causes all kinds of problems due to the way it holds water in suspension, making it corrosive, so anything you can do to extend the life of your fuel system components is worthwhile in my opinion.
over thinking...probably, i just get down to less than a quarter tank & add the entire bottle of techron & filler up & drive away, have had zero problems, i think it also helps to use top tier whenever possible helps keep things clean..
E10 gas absorbs moisture out of the air and holds it in suspension. As a result, the gas now becomes corrosive to anything metal it comes in contact with. This causes all kinds of fuel system issues, and there really isn't anything you can do to get the moisture out once the E10 has drawn it in. I think the stabil products try to counteract the corrosive nature of the water mixture in the gas, but I don't know how effective it is. E10 gas also goes stale much faster than regular gas, and this is really what stabil tries to protect against. The best protection against E10 is not to let it sit in your tank for long periods, and just keep it flowing and keep it fresh. That's about the best you can hope for in this day and age. E10 is a scurge on the public, and the biggest hoax ever played on the American public. Thank the farm lobby for it.
E10 gas absorbs moisture out of the air and holds it in suspension. As a result, the gas now becomes corrosive to anything metal it comes in contact with. This causes all kinds of fuel system issues, and there really isn't anything you can do to get the moisture out once the E10 has drawn it in. I think the stabil products try to counteract the corrosive nature of the water mixture in the gas, but I don't know how effective it is. E10 gas also goes stale much faster than regular gas, and this is really what stabil tries to protect against. The best protection against E10 is not to let it sit in your tank for long periods, and just keep it flowing and keep it fresh. That's about the best you can hope for in this day and age. E10 is a scurge on the public, and the biggest hoax ever played on the American public. Thank the farm lobby for it.
The biggest problem with ethanol is its effects on old rubber and plastic components, in vehicles made 20+ years ago before it was added to gas.
Aside from all that, I wouldn't blame the farm lobby. The problem is government. They are the ones pushing it by subsidizing it.
NOTE: In modern America, the reason for anything that goes wrong is always with corporations, CEOs, capitalism, free enterprise, and "too much liberty" -- it is never the fault of government.
The biggest problem with ethanol is its effects on old rubber and plastic components, in vehicles made 20+ years ago before it was added to gas.
Actually that is only one of many problems of Ethanol.
It is corrosive to metal when it absorbs water.
It is hygroscopic.
It phase separates.
It has about a 3 week lifespan before it goes stale.
It burns hotter.
And yes, it is hard on plastic and rubber components.
10-05-2017, 10:50 PM
Techron Ratio
All Texaco gas pumps show Techron in the gas. 
