Gas is dangerous but gas cleans well.
I grew up with my dad using gas, I have and do so now. Though if I could afford a parts sink and solvent I would do so.
When using gas you have to be safe. Have a hose ready, use small amounts, work outdoors away from things that can catch fire, have containers to drain the dirty gas into and cap for proper disposal.
And, don't use diesel, it does a poor job cleaning and takes forever, and the results are not as good as with gas.
