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#1
02-14-2015, 05:57 PM
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B20 in a 300d 2.5?
not sure im posting in the right forum... just curious if our om60x's can handle this fuel. i have read about smoother running and quieter engines, but ive also heard about hoses and o rings needing to be changed.
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'92 300D 2.5 '99 E300TD 
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#2
02-14-2015, 06:15 PM
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100% compatable with straight stock everything. I'm running b100 in mine and its loving it.
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Current fleet 2006 E320 CDI 1992 300D - 5speed manual swapped former members 1984 300D "Blues Mobile" 1978 300CD "El Toro" Last edited by Phillytwotank; 02-14-2015 at 07:22 PM.
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#3
02-14-2015, 07:21 PM
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The fuel return lines on each injector should be watched.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!!  1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#4
02-14-2015, 10:22 PM
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B100 will melt the return hoses and also some o-rings but B20 will not, or at least at a much slower rate. My OM606NA engines have run B20 for several years with no problems. Anything above B5 will improve the lubricity of ULSD; B20 and above eliminates the "diesel stink," unless you think it doesn't stink, it which it has no effect.
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 "Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970
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#5
02-14-2015, 10:30 PM
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B20 won't hurt the fuel return lines much faster than ULSD will, but the hose should be regularly monitored... It's messy when they fail!
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 560SL convertible 1987 190D 2.5-5SPEED!!! 1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#6
02-15-2015, 12:26 AM
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Definitely the return lines... I have factory hose on now and it seems to be doing well. I used some aftermarket hose and it didn't hold up well. I'm sure you can find some bio compatible aftermarket hose but I've heard good things about the factory lines.
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'98 E300 Turbo "Juliette" '85 Federal 300TD
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