Engine Flush?

Question

I have a 1996 Jeep Grand Cherokee 4.0L inline 6 with 126,000 miles on it. Should I run an engine flush through it on my next oil change or will it do more harm than good?

Answer 1

OK, I'm going to type this up and store it on the computer. 1. Drain oil and replace filter. 2. put in deisel fuel instead of oil. 3. start and idle for 3-5 minutes. 4. Drain deisel fuel out. 5. put deisel fuel back in and start it again. 6. Drain, replace filter, and fill with oil. All done. Cheaply. Good luck.

Answer 2

Don't do it, if your engine has too much of the carbon deposits, flush won't remove all of them - some stuff will still be loose in the oil pan and can clogg your oil pick up screen later on. If you engine is fairly clean, what's the point flushing it? Just change the oil more often, that will be more helpful

Answer 3

My opinion is anything that reduces the viscosity of your oil, even for a short time is causing added wear to the engine. I personally don't use them. If you keep up with your oil changes and use a quality oil, you shouldn't have much problem with sludge build-up. Today's oils have pretty good additives in them to prevent and eliminate sludge.

Answer 4

Let sleeping monsters sleep, you could break off a big deposit that could cause something like an oil pump to fail, and you will start losing oil from the kerosene eating at you seals. Look into autorx I believe people have great results with that.

Answer 5

it won't hurt it. it just gets some of the sludge and carbon deposits out of it. but if you don't need it there's no need to do it in the first place.

Answer 6

if you really like your jeep and want to prevent any unnecessary repairs,than yes.you cant hurt it with preventive maintenance