2018 Chevrolet Silverado - grease once a year. RED TACKY GREASE (or any grease meeting NLGI #2, Category LB or GC-LB) for the nine (9) zerks. use straight fitting and 90 degree with 36" hose lever grease gun.
(2) outer tie rod ends
(2) upper ball joints
(2) lower ball joints
(1) top of pitman...
2018 Chevrolet Silverado 2500HD 6.0L 4wd. 6qts WALMART SUPER TECH Advanced Synthetic (20,000 mi. rated or 1 year) 5w-30 and a NAPA GOLD FIL 7060MP oil filter (50% off annual sale is when I stock up). Change Every 5,000 (OLM @ 20%) - 7,000 (OLM @ ~5%) miles.
Sometimes buy NAPA Full Synthetic...