Here you go....

 

Not a good test senerio

if the test is to measure lube or to measure soot reduction via ctane improvement or to measure water removal or to measure cold weather flow….who gives a hoot that the additive has trace elements that compare to the ingredients of coolant. …..who’s pay this guy.

 

been running diesels for almost 20 years

Run ATF in fuel to clean injection system

Most additives dont work but adding in 2 stroke oil has kept my IDI and HEUI engines running better

Yes even the gas ones with a carb gets some as well so the carbs will have an oil film instead of corrosive alcohol when shut down.

 

As a Truck driver with 24 years rolling my take.Yeah started in a 95 ihc cabover 60 series detroit.2nd was a 97 ihc 9400 daycab M11 cummins( my fav). On All the additves,I only recommend 2 with Real results and or zero negative effects.Power Service ( Grey bottle) and Seafoam are what I had the best experience with.Mpg is gold in the big diesels, and a noticeable power gain,and these Work.While i transition to Volvo in 09 vnl daycab D13 (400hp) the emissions mostly knock sensors= def always failed.My 12 Volvo rocked with a 10spd with 3 55 rears( power service ruled) Mpg and improved power, Zero injector issues or cold start struggles.Stepped into a 19 Volvo 12spd auto tragic but it was pretty strong on mpg 8mpg average,but achieved higher like 9-9.5 power serv. Again.Last year got my 1st New truck ever.25 IHC LT with the IHC S13 ( 400hp) 14spd auto.Whole molly mpg is insane,no matter the load.Yes power serv. Not alot but sometimes.Pic I'm showing is 358miles went from nc- sc and back empty/ loaded with a Reefer load was 27k .Wow.Point is PS Grey is king ,Seafoam is great, but have to add 2 bottles for a See it benefit mpg.figured i would show my Truck