what kind and how often. Thx in advance

 

I do. Didnt for a while but now back on it. If you go to Zippers Performance web page they have a great cleaner. I had a bout with a very rich running motor that was black inside. One dose cleaned it out. What they sell does not hurt 02 sensors. Some of the stuff out there does so you gotta watch that it says on the label that it doesnt ( if your running them). I run a bottle every few tankfulls (whole bottle not what they recommend) to a tank of gas. They even recommended to do it that way to get it clean,clean. You will notice a difference.

 

Have never used it.

Also, never had any issues with any of the fuel injected engines I own.
My truck has over 130,000 miles, and my Corvette just over 120,000 miles.
No fuel system issues with either of them

Just over 27,000 on my Street Glide and no issues there either.

If you use a good top tier gasoline, and do regular maintenance (including fuel filter), there there isn't much need for fuel injection cleaner.

 

I have never used it in any thing, and my last 2 Ford vans had over 200000 miles on them with no fuel problems. But I could just be lucky, and if that's what it is. then that's about the only luck I've had.

 

I do in everything I have. Don't know if its really necissary but I do it any way. Lucas upper cyclinder lubricant with injector cleaner. I put it in every time I change the oil.

 

I use a couple ounces of Seafoam every 6 months or so. No FI problems in 10 years...

 

I ran 1 bottle through it at about 12k. Now I have near 30k. Probably time to run another bottle and change my fuel filter for general P.M. Now that you mention it.

 

SeaFoam every 6 months.

Rocket Fuel ever 6 months.

 

I do. It's called gasoline.

 

reason i ask is that this gas these days is garbage. Gone r the days of good ole leaded gas. Man good times. I find it hard to believe that the unleaded gas with ethanol isnt hurting injectors and valves so wanted to know if injector/engine cleaner was the same for a HD vs a auto.