Diesel fuel additives

[fliesitdies]

Seafoam every 3rd tank

[bearpaw]

My buddy who’s a major Cummins fan recommend Diesel Kleen when I asked this question in regards to a 99 VE Diesel Jetta. I believe it’s helped increase mileage a few mpg. I went from 42-43 to 44-47 with occasional 52 on a long road trip. Seems to keep things cleaned out

Those Jetta's got amazing mileage! 

[JWEBB]

Is the sea foam your using just the regular kind? Or is there a special one for diesels? Sounds like it’s betwwen the diesel Kleen and the sea foam

[Mudman]

Waste of $.  Winter time only time fuel may need help.  I dump cheap 2 stroke oil in every so often.  Injector need lubed.  New fuel doesn't do this.  New trucks handle fuel better.  Install a GOOD fuel filter and be done.  If inj are dirty they are likely going bad regardless.

[HntnFsh]

Bio diesel has better lubricity and cleans your injectors etc. I run it any chance I get. Lots of people say better performance and mileage too.

[Wanttohuntmore]

I was told stansadyne. 

[jackelope]

So many different opinions on this stuff. We have a lot of people that come here and buy the Motorcraft cetane booster.

[luckyman]

I use Diesel Kleen in my 7.3 every tank. If i skip a few tanks I can tell. It doesn't sound or feel quite as snappy. Other brand treatments may be as good or better, I don't know.

[Crunchy]

Where do you guys buy the stuff?  Im sure local store have it but looking to buy a case at a time at a decent price.

[fliesitdies]

Clearly lots of opinions that's great, bottom line is using something is better than nothing. I buy my seafoam at Wm. It's the cheapest that I have found.

[bearpaw]

So many different opinions on this stuff. We have a lot of people that come here and buy the Motorcraft cetane booster.

Have you ever heard of any studies or manufacturer recommendations?

[2labs]

Lubri-Bore. 250k 7.3

[jackson7]

my 2000 7.3 [245000] has always used standadyne. recently switched to  Alliant power Ultraguard.

[luckyman]

I have 280,000 on my 7.3 using the Diesel Kleen. Buying at wallmart.

[timberghost72]

I've used stanadyne for 15 years and like it. 7.3l.