Bilstein Engine Flush...

[Archive]

Looking for anyone who is familiar with this service or had a vehicle's lubrication system flushed using this technology. All personal experiences and opinions are welcome. Thanks.

 

[LSMITH]

I have never used nor would I ever consider it. For a flush to work in cleaning the engine it will have to be a solvent, or largely solvent in nature. The lubricating ability of a solvent is poor compared to an oil. All of the flushes I have ever seen require you to run the engine for at least a short time with the solvent in the oil, and in my opinion will drastically reduce the oils ability to lubricate. I have no facts to back up any of this, but it is my honest opinion.



If I thought I needed to flush my engine to clean it internally I would put a good quality group 5 synthetic oil rated for my application, they typically have a higher detergency than a dino oil and will clean rather well. Some research could be done to find out which one is highest in detergency. I would run and drain the synthetic at my normal interval, with maybe a filter change at the mid point of that drain interval for extra insurance. When that was done you could do another fill and drain with the synthetic for additional cleaning as well, or return to whatever your normal routine is.



I also think that the average diesel oil has enough detergent in it to keep a properly maintained engine more than clean enough, I have about 90K miles on mine with 5-7K mile drain intervals (75K on rotella and 15K on delo) and there is no sludge or buildup of any kind. When the oil is wiped off of internal surfaces they are incredibly clean. I have had the valve cover off several times and it amazes me each time at how clean it is. There are pockets under the valvecover that oil sits in with little or no flow, they are a perfect place for buildup to occur and there is NONE.



I hope my rambling opinion helps.

 

[Archive]

Thanks LSmith. You give some very good advice. I use Devac1 personally. I ran my overhead yesterday. (44,000 miles) Everything looked great.

The Bilstein Engine Flush is being marketed primarily toward gas burners. This is the same Bilstein Corporation of shock absorber fame. I was interested and wondering if anyone had the process performed on a high mileage daily driver (automobile) yet. Thanks again.