new brinkman trailmaster and curing questions

[z-man]

I have just assembled my brinkman trailmaster with hi temp caulk between firebox seems, between the firebox and smoking chamber, 12x10x8 "minion" box made of expanded steel and 16 gauge tuning plate measuring 14x36 with the last 6" bent at a 45 degree angle against the firebox side with  3 more plates 14x6 flat for additional tuning.  Dual 3" river country thermo's are ordered and will be here next week.   I am on my way to get my aluminum elbow and dryer duct for the pipe.  Question is when curing should I put the tuning plates in it and if so should I spray them with the vegetable oil as well?  Also, it doesn't say in the manual, but should I spray the firebox with vegetable oil too.  I know not to spray the grates but unsure about the actual box.   thanks

 

[s2k9k]

I don't think the vegetable oil is all that necessary but I would put the tuning plates in. The main reason for seasoning is just to burn off any oils or other dirt that might be left behind from the manufacturing process.