excessive blow by? - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 08-16-2007, 01:45 PM Thread Starter
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excessive blow by?

I have a 99 Ford F350 with 166,000miles. Smoke "puffs" out of the oil filler tube. Is this normal . Truck seems to be running fine, plenty of power and boost and does not burn oil between changes. In a past forum someone said something about a blackstone Test? What is this and where do I have this done. Just want to make sure truck is alright before hooking up again to a 38ft toyhauler.
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post #2 of 2 Old 08-16-2007, 02:12 PM
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Blackstone laboratories will do and oil anylisis on a sample of your engine oil and give you info on wear and whether your intake filter is up to snuff etc. Ask for a sample bottle they send it free you send the sample in with I think its 22 bucks now and they will email you a report. Its well worth the money Here is a link to there website. Blackstone Laboratories

2002 F-250 4x4 EC, SRW, SB
Auto 93,000 miles
DP Tuner F5
ATS Compressor and 1.0 Exhaust housing high flow back plate
Turbo Back 4" Silverline Exhaust Mbrp Muffler Delete
Isspro Trans,Pyro,Boost Triple Pod
Fumoto Oil Drain Valve
AIH Delete With Boost Fitting

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