Engine cleaning

I’m not sure what section this should be in.

Does anyone know how to make or where to buy environmentally safe degreaser?

I need to clean up my old BCS tiller. I can’t take it to a car wash very easily. It’s very heavy. It’s too long to load it on my truck with ramps. The bumper hits.

There are citrus based degreasers. Some come in a spray can. Not sure if they are advertising gimmicks or really eco friendly.

I searched amazon, found superclean degreaser. Biodegradable and phosphate free.

Found another.  3d orange degreaser. "Eco friendly" stated in the write up.

Thanks!

I use oven cleaner containing lye. I can't vouch for its environmental credentials but I'd be reluctant to let it anywhere near an oven.