Re: Gasoline in a diesel engine ???

Posted by RN on December 20, 2004 at 12:14:00 from (24.183.55.221):

In Reply to: Gasoline in a diesel engine ??? posted by MMB on December 20, 2004 at 11:31:38:

some diesel pumps partial use the fuel as a lubricant in say plunger/pressure piston area, gasoline doesn't lubricate -pump has extreme high wear, short life. GM on cars 80s 350 this problem. Early JD Bosch pattern didn't have problem because used engine oil at back of piston to lubricate- gas mix was relatively harmless. Other problem is straight gasoline not just winter mix of say 20%- burn rate in cylinder is quicker than diesel - flash at close to TDC causes lot of heat. Example I know of was Puegot 504 diesel delivered to Glenview imports. Car was offloaded at Kenosha with 3 gas models, all 4 were filled with Gas and driven to Glenview- about 90 miles. Diesel engine siezed at end of run- top of pistons cratered/melted, cylinder walls scored badly, rings welded into piston grooves, head also pitted/craterd, valves/ valve guides scored. Used as object lesson- when picking up vehicles, read paperwork, take fuel tank decals from delivery pack and fit around filler neck/top of tank cap- English label will say 'Diesel fuel' or 'unleaded gasoline' - fill with appropriate fuel before delivery to dealer or put on trailer to deliver. RN

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