STP Complete fuel system cleaner

[Green Machine]

My clutch has metal plates between the fiber friction plates, not sure if all clutches do, but those are what usually gets burnt and warped

so I wonder if they would still warp or burn if they were coated in duralube? my dad put that stuff in his air compressor about 25 years ago( I said about) he hasn't had oil in it since the early 2000's because the head cracked and leaked all the oil out and it still runs with no oil in it. so really how bad can it be for a bike? I haven't seen any research online about this or anyone who has even tried it. does anyone feel like chipping in a few dollars and buying an old bike and trying this out, maybe making a youtube video out of it. I really would like to see if it does anything to the clutch or if it's just an old wives tale about lubricants hurting the clutch. to really think about it oil is a lubricant and synthetic oil is pure lubricant...

 

[dricked]

Some bikes (like my Yamaha), it's impossible to get all of the old oil out when you change it (I think 0.5L remains in the pan or something). There's instructions about using the starter to turn the engine over (at full throttle, so it won't start) with no oil in the bike, and the oil pump will suck the last bit out of the pan and squirt it over to the drain plug side, but I'd never do it. I think just some bikes are better at getting the old oil out, so the new stuff stays looking newer, longer.

My friends 2000 zx6r, JohnnyP changed the clutch in it. Even after a track day the oil is still bright red (Motul 7100) and the inside of the engine is spotless, inside of the block is shiny like it just came out of a pressure washer!

You'll never get all the oil out of any engine doing an oil change unless you tear it down completely. Your friend obviously did regular oil changes so when he does an oil change the engine and remaining oil that doesn't come out isn't contaminating the rest of the oil so badly that it turns all the new oil black. As an amsoil dealer I would have thought you knew this.

If you do the method that uses your oil pump to get the last bit of oil out you'll run your pump dry and basically have a running (at a much lower rpm) engine with no oil in it.

 

[hpvchewy]

If you do the method that uses your oil pump to get the last bit of oil out you'll run your pump dry and basically have a running (at a much lower rpm) engine with no oil in it.

You mean when you fire it back up after the oil change? You'll have the empty oil pump have to suck up oil and build pressure while the engine is running for a few seconds with no oil pressure?