Engine flush

Nisfro98 · 09-28-2020, 02:24 PM

Does the forum recommend using an engine flush prior to doing an oil change? If so which one?

Helmsman · 10-06-2020, 02:51 PM

Never heard anyone doing it, not even sure what it means mate. Regular 5k miles oil change should do the trick...👍

Johal E32 · 10-06-2020, 03:14 PM

I've used them on my much older BMW's with decent results. Usually I have a reason to use the product.

What makes you think you need an engine flush product?

pbonsalb · 10-06-2020, 04:29 PM

I have used the liqui moly stuff. Can’t say it makes any difference. It would probably help a neglected engine that has a bunch of sludge in it from failing to do regular oil changes when using conventional oil.

Dpc2u · 10-06-2020, 04:39 PM

If a full synthetic was used and changed regularly, absolutely no need. Now if you have been using dinosaur juice and not changed the oil, that's another story. I remember tearing down engines that had run Quaker State that looked like a crude oil tar pit inside!

09-28-2020, 02:24 PM	#1
Nisfro98 Private First Class 51 Rep 170 Posts Drives: Mazda3 Join Date: Aug 2019 Location: KY iTrader: (0)	Engine flush Does the forum recommend using an engine flush prior to doing an oil change? If so which one?
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10-06-2020, 02:51 PM	#2
Helmsman Major General 4465 Rep 7,109 Posts Drives: 2011 AW E90 M3 ZCP Join Date: Mar 2014 Location: Stockholm, Sweden iTrader: (0)	Never heard anyone doing it, not even sure what it means mate. Regular 5k miles oil change should do the trick...👍
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10-06-2020, 03:14 PM	#3
Johal E32 Private First Class 163 Rep 183 Posts Drives: 91 M5, 98 M3, 08 M3 Join Date: May 2019 Location: Earth iTrader: (3) Garage List 1991 BMW M5 [0.00] 1998 BMW M3 [0.00] 2008 BMW M3 [0.00]	I've used them on my much older BMW's with decent results. Usually I have a reason to use the product. What makes you think you need an engine flush product?
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10-06-2020, 04:29 PM	#4
pbonsalb Lieutenant General 5231 Rep 10,614 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	I have used the liqui moly stuff. Can’t say it makes any difference. It would probably help a neglected engine that has a bunch of sludge in it from failing to do regular oil changes when using conventional oil.
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10-06-2020, 04:39 PM	#5
Dpc2u Major 11503 Rep 1,069 Posts Drives: E93 M3, E60 M5, F15 X5, E46 Join Date: Feb 2019 Location: Middle Tennessee iTrader: (0)	If a full synthetic was used and changed regularly, absolutely no need. Now if you have been using dinosaur juice and not changed the oil, that's another story. I remember tearing down engines that had run Quaker State that looked like a crude oil tar pit inside! __________________ E46, E60 M5, E93 M3, F15 X5 IG - @thebimmerhaus
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