Team-BHP - View Single Post - My Experience With adding Boric Acid in Engine oil

Boardmaker · 23rd September 2008, 19:51

Hi There,
I have been watching this thread with great interest!

After reading through the mant pages about Boric Acid here i decided to give it a try.
I live in the UK and have an old Vauxhall Astra 1.4i car,i have had the car for approx 6 years.
The car had approx 50,000 miles on it when i bought it,now it has done approx 110,000+ miles.
I have regularly replaced the oil and filter,and used good quality semi synthetic oil.
The car runs well,the only minor thing is that of slight hydraulic tappet noise on startup when cold and when left standing for some days,within a minute or two the tappets are then fine,i have been told that this is quite normal.

Anyway i bought some Boric Acid 99.5% industrial/technical grade and mixed it with acetone as previously recommended.

I then took the car for a long run approx 100 miles,what i noticed is that the engine starting to run quieter and smoother,also i noticed that i needed a touch less throttle to keep say 50mph!

Now after running the car since (approx 300 miles more) the hydraulic tappets are now silent on startup,and the car feels smoother and seems to glide along!

I am about syphon out some gearbox/differential oil and mix some Boric Acid with some ep80 oil and then top up the transmission oil and give the car a good run.

I have also just mixed some Boric Acid with engine oil and put that in my friends old Ford Orion diesel car and see how that performs.

I have not forgotten to change my oil filter,or my friends,but the results look excellent.

In future i will mix the Boric Acid with oil only,and not acetone,as i noticed a small amount of Boric acid left on the inside of the cam cover,on the cam splash guard.
When i did my friends Ford diesel car the oil/Boric acid mix seems to not leave a slight boric acid residue on the cam splash guard,i think that is due to the heat of the engine vapourising the acetone quickly.

But all in all i am delighted with the results so far!

Thanks Finetuning top man.

23rd September 2008, 19:51	#355 (permalink)
Boardmaker Newbie Join Date: Sep 2008 Location: Holywell Posts: 1	Hi There, I have been watching this thread with great interest! After reading through the mant pages about Boric Acid here i decided to give it a try. I live in the UK and have an old Vauxhall Astra 1.4i car,i have had the car for approx 6 years. The car had approx 50,000 miles on it when i bought it,now it has done approx 110,000+ miles. I have regularly replaced the oil and filter,and used good quality semi synthetic oil. The car runs well,the only minor thing is that of slight hydraulic tappet noise on startup when cold and when left standing for some days,within a minute or two the tappets are then fine,i have been told that this is quite normal. Anyway i bought some Boric Acid 99.5% industrial/technical grade and mixed it with acetone as previously recommended. I then took the car for a long run approx 100 miles,what i noticed is that the engine starting to run quieter and smoother,also i noticed that i needed a touch less throttle to keep say 50mph! Now after running the car since (approx 300 miles more) the hydraulic tappets are now silent on startup,and the car feels smoother and seems to glide along! I am about syphon out some gearbox/differential oil and mix some Boric Acid with some ep80 oil and then top up the transmission oil and give the car a good run. I have also just mixed some Boric Acid with engine oil and put that in my friends old Ford Orion diesel car and see how that performs. I have not forgotten to change my oil filter,or my friends,but the results look excellent. In future i will mix the Boric Acid with oil only,and not acetone,as i noticed a small amount of Boric acid left on the inside of the cam cover,on the cam splash guard. When i did my friends Ford diesel car the oil/Boric acid mix seems to not leave a slight boric acid residue on the cam splash guard,i think that is due to the heat of the engine vapourising the acetone quickly. But all in all i am delighted with the results so far! Thanks Finetuning top man.