Post by
Q45tech »
https://forums.nicoclub.com/q45tech-u112.html
Tue Jan 14, 2003 10:41 am
Sounds like a typical oil change to me!
Remember more than half a quart probably won't drain out [pan shape and gallies,etc].
In winter I would let the BG Quick Clean run for an hour, at least 30 minutes you can drive with it in [as long as you don't get stressful above 4,000 rpm].
Generally Q are less dirty than you would think but even with Mobil 1 changed every 3-4k and lots of treatments with chemicals the aluminum stain [orange] won't come off.
We tried to cure a badly baked on sludged Q with everything under the sun including Acid and Soap AND BG PURGE.....gasoline/kerosene mixed in oil [why, because we felt the engine was toast in the first place].We finally built a special trap door bottom oil pan to get the clumps out as they loosen and fell every 300 miles......this has been going on for 7 weeks now with twice per week oil changes.
The point is real sludge can't be removed chemically needs an ice pick and hammer.
Don't think a single cleanup cycle can make up for year of non 90 day change interval abuse.