Here are a couple of observations re Nulon from years back : I added some of the G60 for gearboxes to an old 4 speed Peugeot gearbox, 404, 504, the one cleverly designed with a leak prone vertical change shaft (what were they thinking 45 years after they invented the 16 valve 4cyl?) and was surprised that the synchromesh vanished. Owner was not amused ! Synchromesh relies on friction, and I had to change the oil three times to wash it out enough for the synchro to return.
Another time, I ran Briggs and Stratton fire pump, (the sort that won't start on a hot day, now long gone) pretty low on oil, and heard from a distance that it ran faster and faster until it stopped at pretty much full throttle. Seized i thought,and good riddance. But no. I had put Nulon in the oil, and it was good as ever, which wasn't very good, and it still used oil.
And if you put Nulon in a new engine as I did a bit soon, it will never run in. Eventually it blew a headgasket some years later and it stopped using oil after running for a while on the well known mayonnaise.
Today I put E20 ,tho not called that anymore, in an ageing 16V Hdi in a C5 and it was almost immediately quieter. I hope it doesn't block up the suction screen which has huge holes relative to the suspended particles. I guess it might have an effect on the hydraulic lifters. I Hope not. Cheers, Jon
