@Zor_Lence
Duodeluex has been around forklift trucks a while and has been to more than 3 county fairs and a couple of goat roping contests,
He just looking for new "tricks".
Never PW an engine compartment - just used water hose pressure sprayed the compartment with spray de-greaser, sprayed distributor and wires with WD - (WD = Water Dis-placer) and for a "belt and suspenders" approach stretched one of those rubber gloves that the Dr. uses for a prostrate check over the distributor or Walmart bag and a twisty and avoided direct pressure on the cap area.
Realize that PW is required for operations in gypsum operation/ dry wall manufacturing, fish/meat processing, glue making, cotton bale handling, etc due to the vacuuming effect of a forklift.
One more thing that has nothing to do with forklifts but for cleaning mold & mildew off your your house siding. I no longer pressure wash my siding. I go to Home Depot to get all the stuff you need. - I gallon of of JoMax (cleaner dirt off and has mildew killer to) about 20 bucks, two gallons of oxygen Clorox (about 10 bucks ea) and on Windex Outdoor Window Cleaner (9 busks) You are after the the bottle spray that has an Off, Clean and Rinse position. This sprayer will reach about 25' in the air or higher if you are taller than 5'7'" (me) while standing flat footed on the ground..
Empty the Windex into a milk bottle - you can use it after your a through cleaning. Pour about 1.5" to 2" of JoMax in the bottle, then fill the bottle with the Oxygen Clorox (HD has a store brand). Hook it to a hose. I spray my siding first with water first (rinse position), then start at the top in the Clean position start cleaning let sit for about 5 -10 minutes then rinse - don't let it get dry before you rinse. Takes me about 2.5 hour to do my house - and I have a covered wrap around porch ceiling that need treatment). It runs across the front and complete side depth).
No ladders, faster time , no gasoline to burn. I've done this for the last 15 years about every 2 years. - I just watch the north side of the house for that green mold to show up..
One more thing it works great on cleaning the the flat stone work I have on the house front and on the stacked stone work on each side of my driveway that bridges the drainage culvert.