satchy

I've read the previous threads on techron and haven't found this problem. I recently added a bottle of techron to about 11 gal of gas. 10 miles later my check engine light went on. The dealer hasn't checked to codes yet, but has anyone seen techron trigger a check engine light, or is this more likely unrelated?

satchy 96TT

Viken

I have been using Techron in my cars for several years without any problems. The only thing I can think of is your gas cap not being tightened all the way.

jhb

When I bought my 86 cab, I added techron, and through the whole tank, the engine sputttered and coughed. The light came on. When the tank was empty and refilled, it never happened again. Could have been bad gas as well, but I doubt it. I use techron in my 97, in fact, theres a bottle of it in the car now, and seems to run fine.

pig4bill

Most fuel system cleaners will make your car run poorly. Read the can/bottle. It's not gasoline so it doesn't burn well.

Steve Weiner-Rennsport Systems

[quote]Originally posted by pig4bill:
<strong>Most fuel system cleaners will make your car run poorly. Read the can/bottle. It's not gasoline so it doesn't burn well.</strong><hr></blockquote>


Hi:

With all due respect, the good fuel system cleaners like Techron. LubroMoly, Redline, and Swepco will not affect the way the car runs, in and of itself. You'll only experience some stumbling if there is a resident problem that these solvents will start dissolving.

In the vast majority of cases, adding these chemicals to a full tank of fuel is a pretty seamless affair and its not noticable until the tank is near empty.

These additives do burn quite well and do not adversely effect oxysensors (unless they are very close to their end-of-life) or catalytic converters. If the car being treated has spent a lot of time in city driving usage and has a heavy carbon buildup on the back of the intake valves and fuel injectors, you can feel some idle & part-throttle roughness as these carbon deposits are dissolved and burned.

If you experience a CE light after using Techron, I'd do as Viken suggested and make sure that the fuel tank cap is sealing perfectly. If that's the case, then you'll likely find some oxysensor codes when the cars is scanned with the Hammer or PST-2.

I would ask how many miles are on your oxysensors?

privates8

Steve and/or Viken,

Do you suggest adding the Techron to a full tank of gas or at some other point?

I thought that I had remembered reading somewhere about adding it towards the end of a tank(and maybe filling it after??) but am not really sure.

My 993TT has 16k miles and I am unaware of whether it has had this treatment before as I acquired it from a dealer 2 months ago.

Is it wise to start this treatment now and how often is it recommended?

Thanks,


Steve
'97 993TT
Rennlist member 020307-3835

Viken

[quote]Originally posted by privates8:
<strong>Do you suggest adding the Techron to a full tank of gas or at some other point?</strong><hr></blockquote>

Always pour a bottle of Techron with a full tank of gas. For best results, take the car for an extended drive right away. I use a bottle of Techron every 3k miles or so. It doesn't hurt to begin using it at anytime.

Ray Calvo

[quote]With all due respect, the good fuel system cleaners like Techron. LubroMoly, Redline, and Swepco will not affect the way the car runs, in and of itself. You'll only experience some stumbling if there is a resident problem that these solvents will start dissolving.<hr></blockquote>

Tend to agree with Steve; Techron will NOT harm an engine. As I remember, it is one of the few additives endorsed by Porsche (think Bruce Anderson mentioned this).

I have used it for years and never head a problem. 30V Audi A4 had a bit of a stumble after being layed up in a shop for awhile; Techron smoothed out the engine response.

I always dump it in an empty tank at a gas station, then immediately fill the tank. My brain tells me this mixes it better into the tank of gas.

PeanutinCA

I just bought some a week ago (but still not used that full tank of gas pre-purschase) and I'm sure I read, as Ray suggests, pour into a near empty tank and then fill with X amount of fuel. I hope my memory serves me correctly?

Hang on I'll ring the boss at home and check the label.....

ProGard with Techron.
Directions, pour entire bottle into nearly empty fuel tank, refuel with upto 16 gallons of gasoline.

So there you have it.

Dylan. <img src="graemlins/burnout.gif" border="0" alt="[burnout]" />

Steve Weiner-Rennsport Systems

Hi Steve:

Viken and Ray are quite right; just put a big bottle of Techron into the tank with about 25% left, and fill it up to get it all blended well.

Then,......go put a smile on your face and drive the thing the way it was meant to be,.....responsibly, of course.

Bins

Hi SteveW,

Since we dont have techron available in the UK, do you think that Redline is acceptable?

Thanks,

Viken

[quote]Originally posted by Bins:
<strong>Since we dont have techron available in the UK, do you think that Redline is acceptable?</strong><hr></blockquote>

Assuming you are referring to Redline's "Complete Fuel System Cleaner (CFSC)," it is a great product. However, it is highly concentrated and must be used exactly as directed. Also, you might want to consider using Lubro-Moly products which are widely available in Europe.

privates8

Thanks to Viken, Steve, Ray and Dylan for your input.

One last question: When I went out to buy the Techron, the only size that I found was the 20oz. size. Is that the "big bottle" size that you are referring to Steve?

I was told by another Rennlister that he thought that the recommendation was for a 12 oz. bottle.

Does it matter? Is one size preferable? Any harm to adding the whole 20 oz. bottle to the 25% filled tank before filling up?

Thanks again,


Steve
'97 993TT
Rennlist member 020307-3835

Ray Calvo

Tend to agree w/ Silver Bullet; read the danged bottle. Sez what size gas tank it goes in. I generally use the big bottle on 911s I've owned.

DJ

[quote]Originally posted by Steve Weiner-Rennsport Systems:
<strong>Then,......go put a smile on your face and drive the thing the way it was meant to be,.....responsibly, of course. </strong><hr></blockquote>


Steve,

I don't think that mine was meant to be driven responsibly. At least, it won't let me.