Tsb 05-16-06 Misfire, Lack Of Power, Smoke, Slow Crank In Cold Weather On Initial Sta

[DiFeoFord]

2003-2006 Various Vehicles: Misfire, Lack Of Power, Smoke, Slow Crank In Cold Weather On Initial Start Up - 6.0l Engine
Some 2003-2006 6.0l Vehicles, May Exhibit Misfire, Lacks Power, Smoke, Or Slow Crank In Cold Weather On Initial Start Up. This May Be Due To Oil Viscosity Being Too High. The Use Of High Viscosity Multi-grade Oil Can Slow Cranking Speed More Than 30% At -20f (-29c). High Viscosity Multi-grade Oil May Delay Fuel Injection Timing By Slowing Reaction Of High-pressure Oil Control System Integral To Each Injector. See Tsb Oil Viscosity Chart. It Has Been Updated And Is Recommended For All 6.0l Di Diesel Model Years. Apply The Vehicle Operating Conditions To The Oil Viscosity Chart And Select The Appropriate Viscosity Oil Grade. Use Motorcraft Or Equivalent Oil Conforming To Ford Specification Wss-m2c171-d Or Api Service Categories Ci-4 Plus, Ci-4/sl Or Dhd-1. If Ci-4 Plus Oil Is Not Available, Ch-4 Is Acceptable.