1. I would change your coolant to ELC (Extended Life Coolant) and BOTH thermostats (can be a culprit for overheating issues) and cap.
2. Change your oil and filter
3. Change both fuel filters
4. Service you generator - change oil and fuel, oil and air filters
5. Check your tires (how old)?
6. Transmission oil and filters have been done?
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07 Monaco Dynasty Diamond IV 42 ScanGuage D, AG Performance Module, Koni FSD, Safe T Plus, Ready Brake Elite, Ford F150 4x4 EcoBoost