Frequently Asked Questions About Semi-Truck Polishing

What's the best polish for aluminum fuel tanks and wheels on my semi?

For aluminum components, we recommend starting with a medium-grade aluminum polish like Mothers Mag & Aluminum Polish or Meguiar's Hot Rims Aluminum Wheel Polish. These work well for regular maintenance. For heavily oxidized surfaces, begin with a more aggressive compound like Flitz or Blue Magic, then finish with a finer polish. Always use a dedicated microfiber cloth or foam pad for each grade of polish to avoid cross-contamination.

How often should I polish my truck, and how long does the shine typically last?

Polishing frequency depends on your driving conditions and exposure to elements. For trucks running regular routes, polish aluminum components every 2-3 months and stainless steel every 4-6 months. The shine typically lasts 4-8 weeks on aluminum and 8-12 weeks on stainless steel. Applying a quality sealant or wax after polishing can extend the shine by 50% or more. Trucks exposed to road salt, harsh weather, or heavy dirt will need more frequent attention.

Can I use a standard buffer, or do I need special equipment for semi-truck polishing?

While you can use a standard rotary buffer, we recommend a variable-speed polisher (1000-3000 RPM) for better control. For large flat surfaces like fuel tanks, a 7-9 inch backing plate works best. For wheels and detailed areas, use a 3-4 inch backing plate. Airway buffing wheels are excellent for getting into lug nut holes and tight spaces. Always use appropriate pads - wool for heavy cutting, foam for finishing, and microfiber for final buffing.

What's the proper technique for removing heavy oxidation and pitting from chrome bumpers?

Start by cleaning the surface thoroughly with degreaser. For heavy oxidation, use 0000 steel wool with chrome polish, working in straight lines rather than circles. For deeper pitting, begin with a chrome-safe compound and a foam cutting pad on low speed (1000-1500 RPM). Graduate to finer polishes, finishing with a chrome-specific product like Simichrome or Autosol. Severe pitting may require professional re-chroming, as polishing can only improve surface oxidation, not fill deep pits.

Which areas of my truck should I avoid when polishing, and what precautions should I take?

Never polish over decals, DOT numbers, or reflective tape as aggressive compounds will damage them. Mask these areas with painter's tape before starting. Avoid getting polish on brake components, air lines, or electrical connections. When polishing near LED lights or plastic lenses, use only plastic-safe products. Always let the engine and exhaust cool completely before polishing nearby surfaces. Work in shaded areas when possible, as direct sunlight can cause polish to dry too quickly and become difficult to remove.