Any one used fuel additive?

[My135]

I bought a bottle of fuel additive claimed to clean up the carbon deposit on fuel injectors and values. Any one has any good or bad experience with this kind of products?

[imported_mega]

I started this thread a couple weeks ago, two stroke oil is used in low ratios with diesel trucks, they also have fuel pump lubrication problems with the newer low sulfur fuels. They can run biodiesel or add two stroke oil to help the pump.

it's also used in gas cars at low ratio to help lube pumps

http://www.1addicts.com/forums/showthread.php?t=360881

[SLEEPYDUB]

i like to use paint thinner such as xylene or toulene...

[imported_mega]

Originally Posted by TrackRat

two cycle oil can damage the CATs and cause other issues with O2 sensors, etc.

I asked you about this, and you never replied, please see that other thread, why do you say 2 stroke oil damages cats or o2 sensors?

[My135]

Most fuel additive claimed not to damage the CAT and any O2 sensors. They recommended to use every 3000 miles. So it sounds like that they are safe to use. The quality should be similar to Techron. I am going to try one bottle and see how things go.

[BrokenVert]

I dump a bottle of techron in before I do my oil change. Before anybody asks I called techron to ask if the product was safe for DI engines. It took two days for a response, but they said that it was fine.

Thats the thing with the cleaners/additives. You need to change your oil immediately after you use them, the dirt that was on the internals gets partially put into the oil.

They say do it every 5K miles on the bottles, thats because 5K is the standard oil change interval on most cars.

[vanbmw]

The 135 requires premium gas. If you are buying premium gas from one of the major oil companies (shell, esso chevron etc) the gas has additives in them. They claim the higher grades will prevent any buildups in injectors and on valves. Therefore the extra additives shouldn't be required!

[ESC OFF]

Originally Posted by vanbmw

The 135 requires premium gas. If you are buying premium gas from one of the major oil companies (shell, esso chevron etc) the gas has additives in them. They claim the higher grades will prevent any buildups in injectors and on valves. Therefore the extra additives shouldn't be required!

That's true if the gas was tansported in a clean tanker, and placed in a clean storage tank and pumped through a clean pump that had a dedicated nozzle for each grade of gas...Techron once every 6 months!

[imported_mega]

Originally Posted by TrackRat

Because the CAT and car makers have tested excessive engine oil fumes damaging CAT mufflers. If you check most OMs tell you not to over-fill the engine oil for this reason. Some oil filter caps on newer models also have a symbol to show not to over-fill the engine oil because of documented damage to the CATs which run excessively hot when they get oil in them. There is also the possibility of a fire from over-heated CATs.

overfilling the oil can cause gasket failures, I've never heard of overfilling the oil hurting cats, until you posted this, do you have any links you can provide? as I said in the other thread, I've tried to find anything that would support what you typed above, but I have not had any luck

so one more time, can you provide sources? People have been using 2 stroke oil and oil additives which are basically the exact same thing, with cats for years, without damage or "fires" lol

keep in mind the levels people are adding are so low that smoke is not produced, 1oz to a couple gallons is typical, some do 1oz to 5 gallons, vs a actual 2 stroke motor that uses 5-10 times that much oil


When I want oil info, I go to bobistheoilguy.com and they happen to have a thread about using two stroke oil in cars

http://www.bobistheoilguy.com/forums...1639423&page=1

[adrean8j]

I use a couple of small bottles every 3k miles or so.....Techron FTW.

[jeremyc74]

I wouldn't put ANYTHING in the fuel tank that isn't specificly approved by BMW. Of course the companies selling the additives are going to tell you it's safe, because they want you to buy the stuff, but it's pretty unlikely they've done any specific testing on BMWs.

I'm of the opinion that the most of that stuff is just snake oil anyway, but that's JMO.

[imported_mega]

Originally Posted by TrackRat

As previously advised new vehicle OMs have the warning information regarding over-filling the engine oil damaging CATs as do the oil filler caps on many models. I know for a fact Audi and VW have this in their manuals but other car makers may also.

Oil suppliers also reduced ZDDP content of oils starting with API SM spec oils due to the fact that even a small quantity of ZDDP can harm CAT mufflers and this only comes from crankcase vent systems, so oil vapors can be very damaging to CATs.

zddp was in gas, you can still get zddp oil and oil additives, but keep in mind, two stroke engines use cats too, there's nothing in tcw3 two stroke oil that could harm a cat, at least as far as I've found.

I'm going to look for an audi or vw manual, do you know exactly what model you saw this oil overfill damaging cat warning?

It's pretty common to overfill cars going onto the track, because of oil starvation under long cornering, seriously the first time I've ever heard of oil level affecting your cats is this thread, how exactly does this happen?