Oil Consumption fixed by Mineral Oil - Suzuki GSX-R Motorcycle Forums Gixxer.com

 
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post #1 of 4 (permalink) Old 09-11-2009, 08:59 PM Thread Starter
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Join Date: Jul 2009
Location: Brisbane, Australia
Motorcycle: Suzuki B-King & 93 GSX-R 1100 Streetfighter
Posts: 175
Oil Consumption fixed by Mineral Oil

I had the engine on my GSXR 1100 rebuilt about 7000 km ago. i had new sleeves and big bore wisco pistons installed and the head was given the once over as well.

I ran the bike in on mineral oil and then changed it to full synthetic after 1000 km. I have changed the oil a couple of times since each time using full synthetic.

The bike has been using 200-300 ml of oil per tank for awhile now and i was considering stripping her down to investigate and potentially replace the rings and valve seals etc.

In a last ditched effort to avoid the rebuild (after only 7000 km), I changed the oil back to mineral oil and after 1000 km or so the bike has stopped using oil completely.

I am obviously very happy but i will continue to check the oil consumption.

I am thinking that maybe the rings did not seal correctly before i changed over to synthetic after the rebuild?

Has anyone else had this type of experience?

Should i go back to synthectic on my next oil change or leave it on mineral oil?
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post #2 of 4 (permalink) Old 09-29-2009, 10:55 PM
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Join Date: Nov 2008
Location: Socal
Motorcycle: 2008 GSX-R750, 2006 Kawasaki ZX-14
Posts: 1,744
Re: Oil Consumption fixed by Mineral Oil

Maybe the oil you were using is doing a great job clinging to the walls of the cylinders? No idea, after a good break in id say synthetic is the best way to go, mine doesn't burn a drop of oil.
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post #3 of 4 (permalink) Old 09-30-2009, 09:00 AM
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Join Date: Jun 2008
Location: Chicago
Motorcycle: 2008 GSX 600R
Posts: 289
Re: Oil Consumption fixed by Mineral Oil

I know as far as my drag car is concerned I use only mineral oil. Fully synthetics in some motor applications are so slippery that they can actually make it past seals and what not.
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post #4 of 4 (permalink) Old 10-04-2009, 09:32 AM
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Join Date: Dec 2008
Location: NE Mississippi. A long way from SoCal
Motorcycle: first 3 bikes Norton 750's cafe'd out. Next one norton 850. Next bike GR650, Next '93 GSxr 750, Then a 95 gixxer 750 and 95 gixxer 1100 with the chuck graves touch. then a 96' 750 gixxer, then 97' 750 gixxer , 2002 gixxer. 2008 gsxr1000
Posts: 395
Re: Oil Consumption fixed by Mineral Oil

the reason oil comes in plastic bottles now started with Mobil 1. In the old days oil came in "cans" of wound treated paper with metal tops and bottoms. Mobil had a hard time keeping the oil in the cans. The cans were always seeping and messy to they had to put them in plastic. Good stuff.
Another thing "in the old days" If you had a car with 20k or more on it and you put Mobil 1 in it you leaked oil like crazy. Mineral oil in those days was no where as good as now, and they used to run higher viscosities. If I rebuilt and engine, broke it in with mineral like you did and then had problems with it burning synthetic, I woul have a chat with the builder. It shouldn't be happening
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