Mark Sallis
Van, 4x4 & Commercial
Years of fitting and advising on van, SUV and 4x4 tyres. Mark covers the heavier vehicles, where load ratings and stronger tyres matter most.
Areas of expertise
Guides written by Mark
- 4x4 & SUV Tyre Sizes Explained (Metric & LT)Sizes & Markings
- All-Terrain vs Mud-Terrain Tyres (A/T, M/T, H/T)Sizes & Markings
- Flotation Tyre Sizes Explained (31x10.50 R15)Sizes & Markings
- Van & Commercial Tyre Markings Explained (C, CP)Sizes & Markings
- XL, Extra Load & Reinforced Tyres ExplainedSizes & Markings
- How to Reset the TPMS LightMaintenance & Care
- How to Use a Tread Depth GaugeMaintenance & Care
- Toe, Camber and Caster ExplainedMaintenance & Care
- Tyre Dressing: Good or Bad?Maintenance & Care
- Tyre Pressure for a Full Load or TowingMaintenance & Care
- Tyre Repair Kits and Sealant: How They WorkMaintenance & Care
- Wheel Balancing ExplainedMaintenance & Care
- Hidden Costs: Valves, Balancing and DisposalChoosing & Buying
- Do You Have to Replace All Four Tyres at Once?Choosing & Buying
- Tyre Disposal Fees ExplainedChoosing & Buying
- What to Check Before Buying Tyres OnlineChoosing & Buying
- Caravan, Trailer and Motorhome TyresTypes & Technology
How Mark works at Tyres HQ
Mark reviews the van, 4x4 and commercial guides, where the load rating matters as much as the size. He makes sure the advice reflects how working vehicles are actually loaded, and that drivers are never pointed towards a tyre not rated for the weight they carry.
Every guide on Tyres HQ goes through two people before it is published: a subject specialist who reviews the advice against real-world experience, and our managing editor who checks every fact, figure and tyre size against its source. We work from official UK sources and independent tyre tests, and never publish a number we cannot stand behind.
You can read how this works in our editorial guidelines and in how we review tyres. Spotted something that looks wrong? Our corrections policy explains how to tell us.