Tried them all, the oil Eater rusts up parts and foams really bad. Simple green works great on dirt but is water based as well, CRC is expensive, same with Saftey Kleen (works nothing like the original) Tractor Supply had some decent priced solvent based cleaner $45.00 for 5 gallons bu,t never in stock and it didn't cut the grease that well. Blaster works best, had it in my tank for 2 months still cleans like new, ordered another 5 gallon pail, closest I can fine to the original saftey kleen maybe except for straight mineral spirits which dries out your hands, expensive and smells up your whole garage.