engine flush

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Mar 19, 2023 | 09:59 AM

1mark

Thread Starter

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From: VA

engine flush

Is it save to use engine flush before an oil change?

Mar 19, 2023 | 12:24 PM

spinellib

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From: MA

Yes, but I would use a quality product and follow the directions. I don't think the "flush" products do harm, but not sure they do any good.
For instance, old timers like to use Marvel Mystery Oil in the crankcase before an oil change. Modern engines don't need or like products such as MMO or Seafoam.

Fuel Treatment is good. You might be better off just using some Redline Complete Fuel System Cleaner or Gumout Multi System Tune Up. Both products contain PEA, a powerful chemical solvent for breaking down and dissolving carbon. If you'd like, you can even dump some of the Gumout into the oil and run the car for a bit before changing the oil.
So if you do want to "flush" your engine, I'd recommend the Gumout Multi System or Gumout All In One Complete Fuel System Cleaner.

Do both if you want. Dump a bottle in the fuel tank, and another bottle in the oil.

Mar 19, 2023 | 12:42 PM

cdnewton

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From: Colorado, USA

What makes you think you need an engine flush? Has the vehicle been neglected? Do you change your oil regularly? Do you use the proper API certified oil? Lots of questions.

Mar 19, 2023 | 02:09 PM

1mark

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From: VA

Oil change every 3k
New filter
Oil looks clean not dark on the dipstick.

Just on some cold start ups I hear a valve rattle for a moment or two.

Mar 19, 2023 | 02:59 PM

tomr51

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From: NSW

rattle is "normal". if the car has been well maintained, i would not do a flush. sometimes they can do more harm than good

Mar 19, 2023 | 03:32 PM

1mark

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From: VA

Thanks, I was looking for the normal information

Mar 21, 2023 | 02:15 PM

Felix

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From: The Jet City

If you want to add chemicals to clean your rings/lifters, I'd drain a few qtrs & add 2-4 qtrs of atf & drive it easy for a day or two.
I'd use a good synthetic oil & filter.....