winter oil in PSD
This will be my first oil change, got a 2003 7.3 PSD in Aug. 07. with 76,000 miles. don't know whats in the engine now. Hayes book says 10w30 if below º30. I live in wisconson, read lots of threads about brands. plan to use Shell Rotella T. don't have a Ford owners manual for the 7.3. I have read good and bad things about Shell Rotella T, don't know who to believe! also heard of an additive called Lucas oil. Any suggestions? Thanks Don
Last edited by RCFlyer; 10-27-2007 at 05:59 AM.