Engine degreaser?

Mar 10, 2007 7 Replies

I replaced a leaking valve cover gasket and I also intend to replace the pushrod cover gasket. (300cid/6cyl) Over the life of this engine(27yr) a build-up of oil/grime/junk has accumulated. I used to pressure wash it occasionally, but.....I slacked off some. Any recommendations for a strong degreaser that will loosen/melt this gunk? I have a pressure washer/1700psi...cold water only. A steamer would be good, but, no got! BTW: valve train is black, but not a hint of sludge/junk. Thanks



Dave S(Texas)



I would not use 1700psi to clean an engine, even on the outside. There is too much chance of blowing something loose or forcing water inside a part, connector etc which will corrode. I have been using a product called Super Clean which comes in a standard spray bottle and works really well. Then wash off with low pressure water.

FLOW-AWAY from Kano Labs works very well. If you are careful you can use kerosene.

Is that a product from Castrol? If so, I used to use that and it's very good, but I can't find it anymore.....thanks

Dave S(Texas)

I'll look for F-W. Kerosene...back in the day, I used that all the time, but I think I've had enough of that odor now...lol Paint thinner is pretty-much the same formula, but then again the odor 'lingers'...thanks

Dave S(Texas)

On Sat, 10 Mar 2007 09:30:37 -0600, putt rearranged some electrons to form:

The purple degreaser that can be found under various names at most auto parts stores isn't too bad. Spray it on full strength and let it sit a while. Caution: don't do it over any surface (i.e. that new concrete driveway) you don't want to mess up..

Actually its available at Wal-Mart (look in automotive around the other degreasers) for about $5 a gallon in the concentrated form. I use it to clean the grease out of my clothes after I have been working on a vehicle around the house.. It works GREAT.. Especially if you let it sit a while..

Ford Tech

I found a spray by Autocrafters for $1/can. Bought one whole can.....Gunk brand was $3....and followed the instuctions. Hosed the engine down after the waiting period and VOILA! All the nasty gone! I was/still am amazed! I'll buy anothe can!!

The Gunk brand was expensive to begin with, but what puzzled me was the method used. The stuff was a gel and the engine had to be stone-cold. That's as far as I got reading the instructions. I'm sure it's good, but my dollar was well spent.

As an added bonus, the off-fall cleaned my driveway too! What great stuff! lol

Dave S(Texas)

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