I use it to reach the back of the hood, (on the inside), when doing an engine detail.
From this how-to article,
Review: Pinnacle Engine Cleaner & Degreaser and SONAX Plastic Care
Step 3 - Wash the underside of the hood FIRST
Yep... most people don't think about this part and I rarely see this shown in an article or video. The reason you START up high and then go low is because by starting up high after you rinse the underneath all you'll have dripping on the engine will be CLEAN WATER. If you start with the engine first, you know, scrub it, get it clean and then rinse it off and then wash the underneath of the hood... you'll have dirty, oily water now dripping on your just washed and rinsed engine.
Now you have to re-rinse the engine and this is called repeating steps, or wasting time. Not a huge deal but I always hear people repeating the old phrase,
Work smarter not harder
But I rarely see them show you how or what they mean. So start at the top and the go to the engine. This also wets the engine down and depending upon the product you're using could help to avoid any staining to deleicate surfaces as the water on the engine will dilute to some degree the engine degreaser you're going to spray on it.
Safety Tip
Wear protective eye glasses, goggles or a face shield. It's also a good idea to were gloves. The Pinnacle Engine Cleaner and Degreaser doesn't contain any solvents or harsh chemicals so skipped the gloves. Also, be aware of anyone around you, make sure they know you're cleaning an engine and stay up-wind if it's windy outside.
Here's some examples of one-handed photography work where you time pressing the shutter button when you're squeezing the spray trigger to capture the spray coming out of the nozzle.
After spraying the underneath of the hood and allowing the product to dwell for a few minutes this is where you need an assortment of different types of brushes and different sizes of brushes. I find the Mothers Fenderwell Brush works GREAT for engine detailing, see the pictures below.
HERE - This is me scrubbing the far back portion of the hood on the inside of the hood
Wouldn't be without it.
:cheers: