When should I do the first oil change on a new 6.0 liter gmc van? It has the computer which tells you when to change oil. Shouild I trust this for the initial oil change? Do you have a suggestion based on engine hours as the van engine is used to run a pto source which is significant.

Engine oil change for break in period?

AndyB1 April 19, 2010, 9:11pm 11

They say to follow the engine oil life sensor which monitors life of oil. It is hard to get used to technology!!