Quote:
Originally Posted by pr2501
on om602.961 (W124) from 1988.
What do you think is it posible on turbo charged engine?
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Yah, but don't do this.
It took less than 2 drums (55 gal) clean fresh new hydraulic oil to cake new set of glow plugs with glossy hard sugar coating like carbon causing 4 out of 6 burning out prematurely. Car was getting harder and harder to start over a period of about a month, as each Bosch plug began failing in rapid succession. This was about 3 months after getting into the hydraulic oil.
Learned two things:
1. you can start a good compression om603 on 3 good glow plugs, but it just doesn't cut it having only 2 good ones.
2. don't burn hydraulic oil pretending it's similar to WVO.
This is on a 2 tank system that normally burned WVO, for years... with no problem like this ever happening. It has injector line heaters and raises temperature of alternate fuel to a constantly monitored 80*C at the point on the hard lines just prior to the injector nuts. Proper flushing and switchover to diesel on every run. Plugs haven't failed since getting back to WVO.
The plug cost and labour of putting a new set of 6 in did not justify the fuel savings of less than 100 gal.