So I've been away, just getting to write this now. Anyway I had ordered the FPPlus to combat known injector issues in the 4.3 vortec. Before I left town the shipping for the FP was unclear so I did grab Gumout with regane high mileage.
It appears that the Gumout actually solved the starting issue in cold weather. My guess is the poppet valves were sticky? So I have no doubt the Gumout is a very potent product.
The FP plus is on its third tank. One shock dose and two maintenance doses, the starts are still smooth in sub zero temperatures and I would say the idle has smoothed out as well.
It appears that the Gumout actually solved the starting issue in cold weather. My guess is the poppet valves were sticky? So I have no doubt the Gumout is a very potent product.
The FP plus is on its third tank. One shock dose and two maintenance doses, the starts are still smooth in sub zero temperatures and I would say the idle has smoothed out as well.
