Since the age of about 10 I've degreased everything with gas. Yes, it's explosive, and Mom hated the smell, but it sure does take off all the grease and then a little brake cleaner gets it spotless.
But, now that our country is run by monkeys (Oh wait, that's an insult to them. How about leeches??) and gas is over 4$, it probably isn't the cheapest way anymore.
That LA stuff looks like it did a nice job, I'd like to see how it does on a filthy, leaking, grimy motor. with caked on crud...
I just replaced the glass filter on my JD 500C BHL, my tank must be dirty because it's already black again.
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country