mototune wrote:
> Hi guys. Your answer Walt is no. You won't be reseating worn rings or
> pistons or cylinder walls with oil or any additive. Additives will never
> replace or reform the metal (pistons,rings, cylinder wall) that has been
> deformed or worn away. The idea of sticking piston rings is quite far
> fetched for a modern day motorcycle engine. If your rings are sticking then
> you would be pumping oil on a consistent basis (cold starting, warm
> starting,idling, running at low revs, running at med revs, running at high
> revs,erratic oil consumption,people following you on their motorcycles would
> have some pretty tails to tell you.......)& the power of your engine will be
> way way down. You should really notice the lack of power.What RSRBOB is
> trying to do is help people live with this annoying but completely normal
> symptom. You can try to prolong the life of an ailing powerplant but you
> can't avoid the inevitable. Engines are designed to wear out & they can't do
> anything about it. RSRBOB's theory is sound. It brings to mind an experiment
> I did many many moons ago. I had a 4 cylinder 4 stroke motorcycle that would
> wear cam chains & tensioners prematurely. After some 20 000km or so it
> started to consume rather large amounts of oil as well. Well when I finally
> had enough I tried the thicker oil theory. The oil that actually made a
> difference was 80W 90 gear oil. My experiment consisted of a combination of
> street riding & yes race track time. On the street I found cold starting
> took a few extra spins of the starter but the engine became extremely quiet
> & the oil consumption was down to a trickle. On the race track the engine
> performed flawlessly & my racing buddy finished the race quite respectively
> I may add. I wouldn't recommend anyone trying this on their GTS though. But
> the theory has been tried & it works. FYI, I sold that darn thing soon after
> my experiment was done so the after effects of those experiments is unknown
> to me. Speculation would have that I did more harm than good to whatever
> life that engine had left.
Peter,
Sounds like one of my first cars; an old slant-6 plymouth. Before it met it's
recycler I was running three parts straight 50 weight and ~3 cans of STP.
I doubt that the heavy oils hurt anything unless they are too thick to make it
to some engine part on start-up. Aside from that they should work fine and I
would think they are kinder to the engine than lighter oils. There would be
greater power loss from the pumping and even heavier 'flinging about'.
I think this might be an indication of the lighter oils being a 'compromise';
light for easy start-up and less power loss, but quicker to leave the surfaces
therefore less protection in less than ideal circumstances.
I also get the impression that synthetics can protect some surfaces better and
might get away with less viscosity because of that, but when rings get sloppy
you want honey, not gin.
Ontario has a relatively new system of 'clean-air' testing for cars. There are
a variety of additive products out there now to help you pass your test, some
even give a guarantee.
BTW, what did you tell the buyer? ;-)
Cheers,
Rick
