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trace of fuel in lab sample |
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11-06-2009, 04:12 AM
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#1 (permalink)
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Join Date: Oct 2003
Location: Webster City, IA 50595
Posts: 91
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trace of fuel in lab sample
Just got my blackstone report back and it had a trace of fuel in the sample. They said it has not affected the viscosity enough to worry about. What would most likely cause of this? This truck is bone stock, and it has always had good lab reports. I am suspicious that I didn't get the engine warm enough before the sample. If I don't use the truck for a long time(couple of weeks) I will plug it in so it will get warm quicker and go for a ride, and usually run her fairly hard after it is warmed up for 15 to 20 miles. I never start the engine and just drive a short trip around town.
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97 2500, ext. cab, 4WD, auto trans, straight pipe, tabbed KDP,Goerend trans./3 disc TC
06 VW, Beetle, TDI, Automatic (for the boss)
"Man, I hate the smell of gasoline" 
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11-06-2009, 04:35 AM
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#2 (permalink)
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Join Date: Aug 2009
Location: Spokane Valley, Washington
Posts: 41
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Do you let it idle to help it warm up? Extended Idle time can cause fuel dillution as well.
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05 Cummins Quad Cab LONG Bed
6 spd Manual
Bone Stock
Lubrication Engineers Oil
LE 8800 in engine
LE 1605 in Diffs
LE 7500 in Trans + T-case + P/S
Harvard Lube 101 Bypass Oil Filter
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11-06-2009, 05:18 AM
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#3 (permalink)
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Join Date: Oct 2003
Location: Webster City, IA 50595
Posts: 91
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No. I avoid idling big time.
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97 2500, ext. cab, 4WD, auto trans, straight pipe, tabbed KDP,Goerend trans./3 disc TC
06 VW, Beetle, TDI, Automatic (for the boss)
"Man, I hate the smell of gasoline"
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Fuel in oil. |
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Yesterday, 10:15 PM
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#4 (permalink)
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Join Date: Nov 1999
Location: Waterford, Pa.
Posts: 464
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Fuel in oil.
One of my Blackstone oil analysis reports indicated a "trace" of fuel in the oil. The next report indicated 1.5% fuel in the oil. This alarmed me a bit so I took a sample about 1000 miles later and no fuel was detected. My next regular sample (about 6000 miles) showed just a trace.
The lab determines the fuel dilution indirectly by checking the flash point. I am convinced the 1.5% fuel dilution was a mistake and I never had a problem.
I certainly wouldn't worry about a trace unless it worsens significantly. 
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1996 Dodge 2500 4X4 SC, SLT,Cummins 12V, 5-spd., JRE 4" exh., TST #10, AFC Spring Kit, Piers' 370 Injectors, ATS Exh. Man., 4K G. S., Horton Fan Clutch, Exhaust Brake, SB Con O Clutch, RS9000 Shocks, Combo Gauge, AFE Air Filter, Westin CPS Nerf Bars, Brite-Box, CPFF's KDP fix, no turbo silencer ring.
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Today, 01:36 AM
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#5 (permalink)
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Online
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Join Date: Sep 2008
Location: Marshall, Texas
Posts: 258
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I would take several more samples in 1000 mile intervals and see if the dilution gets worse, if not, I wouldn't worry about it. It is also possible, although not likely, that the lab got your sample confused with somebody elses... another reason to take another sample and send it in.
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06 Ram 2500 TRX-4: Mag Hytec Differential covers, Westach gauges, Mopar A-Pillar mount, B&W Turnover Hitch, Infinity Speakers, BD Steering Stabilizer Brace, Silverline Exhaust System!
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