ZeroDfx

I'm about to do my 150k oil change and I'm planning on using the Liqui-Moly Engine Flush before I drain the oil. The instructions say to add the engine flush to a warm engine then run/idle the car for about 15 minutes.
I'm wondering if there would be any advantage or disadvantage to adding it to the oil then driving the car for 15 minutes instead of idling.
Anyone have any experience or thoughts on this?
TIA

twh

In my younger days I would sometimes use a flushing before changing the oil. I think it is a bad idea. You could loosen something that doesn't need to be loose.

seanjordan20

When or if I flush I usually flush for about 100 miles then change the oil.

avar

You should definitely not drive it, follow the instructions on the bottle. Also if it's the LM flush bottle I'm thinking of one isn't enough, it says it has enough for either 4 or 5 liters of oil (can't remember which offhand), but your engine needs e.g. 6.5 liters.

So you need two bottles in that case, and use an appropriate portion of the second bottle.

ZeroDfx

Thanks for your thoughts. Seems to be some differences of opinion but I appreciate the advice.