The M62 bores melt if the engine ever gets hot. Overheat; "two miles from home"
And, crap, your engine is one of the old ones, huh? Do you know if it's Alusil or Nikasil;? The original engines HATED bad gas, and BMW had to replace the entire production of alusil / nikasil (?I forget?) motors in the USA, where there was too much sulfur in the fuel, or so they say.
Yes it's a Nikasil engine , most of the M60B30 and B40 engines here are. I haven't seen an M60 Alusil engine here yet.
The water temp gauge has never gone further than right tangent to centre but I suppose it is possible that a hot spot had occurred in the engine that wasn't detected by the water temp gauge.
You can see the SULPHUR CONTENT in Indonesian fuels (500ppm) is SEVEN TIMES the upper limit of USA specification petrol (80ppm) and this is assuming that quality control has kept the fuel within limits. I wouldn't rule out a high sulphur batch of fuel has gone through my B40 engine.
We have poor quality fuel
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