Engine Cleaner

[90Gmc]

Ok guys i have a 90 2wd with a 350 my motor runs like a clock but over the years the grease and dirt have built up.... I have cleaner but I was just wondering what not to spray and what to cover....

[Drifthopper]

I use Gunk Engine Cleaner all the time.......truck , car , riding mower, tractor.....

 

as for the truck and car.....i don't cover anything and spray everything, even the bottom side of the hood when it's up.

Let it soak for about 8-10 mins, then hose everything off.

 

Never had problem with any vehicle not starting!

 

A gentle spray is all that's needed, i use the garden sprayer wand on the hose, don't get crazy and use a power washer.