I purchased a crate 5.7L from you guys approx. 6 years ago. I had a shop install the engine with lots of fresh parts. I have put about 50,000 miles on the truck since the engine install and have noticed the last few oil changes that I am burning some oil.

I have taken the truck into a shop and they confirmed it is not leaking oil. Should I start using some thicker oil or possibly use some kind of Lucas additive? I wanted to know your opinion before I do anything like that! I'd like to get as much life out of this engine as possible without causing any issues! Any advice you can give would be much appreciated.