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Maintenance, Oils/Fluids, Detailing & Rust Prevention

From the engine bay to the paint booth. Discuss oil analysis, fluid intervals, ceramic coatings, car wash techniques, and fighting rust. Keep your truck running strong and looking showroom fresh.

4,797 topics in this forum

  1. Post your latest oil change. 1 2 3 4 45

    By Black02Silverado,   
    • 661 replies
    • 67.6k views

  2. AMSOIL's XL oil is now Extended Life

    By Black02Silverado,
    • 0 replies
    • 1.9k views

  3. New Hybrid Oil from AMSOIL

    By Black02Silverado,
    • 0 replies
    • 1.5k views

  4. New High Mileage oil from AMSOIL

    By Black02Silverado,
    • 0 replies
    • 1.5k views

  5. Practical Lubrication & Filtration

    By Doctor Lubricity,
    • 11 replies
    • 11.2k views

  6. NAPA Article: 3 Types of Spark Plugs: What’s the Difference?

    By txab,
    • 3 replies
    • 6.5k views

  7. Bad Idea

    By snowman44,
    • 12 replies
    • 13.7k views

  8. LED bulb cross reference guide

    By SarahsGMC,
    • 9 replies
    • 17.8k views

  9. Gmt-900 Torque Specs? 1 2 3 4

    By 358429,
    • 47 replies
    • 228.4k views

  10. Maintenance - Capacities, Torque, And Other Misc Info

    By RyanbabZ71,
    • 0 replies
    • 22.8k views

  11. OCI, not when but why? 1 2 3 4 56

    By Grumpy Bear,
    • 838 replies
    • 50.3k views

  12. Castrol Edge VS Amsoil OE 1 2 3 4 11

    By diyer2,
    • 156 replies
    • 34.9k views

  13. Some Assembly is Required 1 2 3 4 11

    By Grumpy Bear,
    • 155 replies
    • 7.9k views

  14. Linear Logic ScanGauge III 1 2

    By Grumpy Bear,
    • 17 replies
    • 1.2k views

  15. Post your UOA, (used oil analysis) here 1 2 3 4 9

    By Black02Silverado,
    • 133 replies
    • 15.8k views

  16. Another oil thread 1 2 3 4 22

    By Bob2C,
    • 315 replies
    • 24.8k views

  17. School me on window tinting

    By Atlas,
    • 7 replies
    • 644 views

  18. Ethanol Fuels 1 2 3 4 9

    By Grumpy Bear,
    • 122 replies
    • 14.2k views

  19. Engine Oil Funnel/Adapter Kits

    By Chuck FB,
    • 0 replies
    • 1.1k views

  20. 2025 GMC Sierra Elevation

    By ctc2121,
    • 0 replies
    • 329 views

  21. What is oil additive CMOC ?

    By customboss,   
    • 4 replies
    • 633 views

  22. 2011 Sierra: New grille, headlights and foglights

    By jtdenali,
    • 1 reply
    • 526 views

  23. Paint Matching my 2019 Sierra 1500 Bumpers

    By logans5.3,
    • 0 replies
    • 361 views

  24. Sludge, Varnish, Soot & Ash 1 2 3

    By Grumpy Bear,
    • 43 replies
    • 6.9k views

  25. 0W-20 Dexos1

    By Jimbeau,
    • 1 reply
    • 698 views

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