I have been using FUEL POWER and LUBE CONTROL for over five years and in six vehicles, with mileage totalling over 200,000. Zero fuel-related problems, gasoline or diesel, with the biggest benefits going to carb'd vehicles (smoother idle hot or cold, easier start when hot-soaked; able to adjust idle after use for better vacuum reading).
I have also given it to family members for their use. All have seen some benefit, sometimes a mileage increase OR the ability to run lower-octane fuel.
In used vehicles, some 25 or nearly 30 years old, LC-20 cleaned up the varnish significantly on under-valve cover inspection or removal. I always did a Mola-Soak to get the crud out, THEN switched to ARx to get more cleaning done. Valve rattle under part-throttle eliminated by the LC-20FP-60.
Can't beat the price for the benefit. ARx, different animal, is what I use at about 30m miles to get the rest of the clean-up.
I have plenty of posts on these products since the board began, and used LC-20 nearly 40-years ago when it was called Microlube (and used it some B&S engines on lawn equipment that lasted 27 and 41 years).
Yes, they work, and work very well.
On my current Dodge CTD my recorded mileage in-town is as high as anyone I've seen posted who kept records (19.3 this calendar year for a 7,400-lb truck in the city), and the manual transmission (New Venture 5600) smoothed out a little when I added some at fluid change. I added LC-20 to other fluids prior to changeout.
I occasionally throw something else in the fuel (Stanadyne), but I see no reason to change after such great performance.
I have a UOA from five years ago (2, back to back) on a Jeep that shows the change from using this product: a nice change in the UOA.
I've had the benefit of being able to consult with Odis Beavers, the former owner of the products, and Terry Dysons input as well.
It's not well known, here, with too many members nowadays, but it deserves to be.
Does exactly what it says it will do.
