Buying Guide
Microfibre GSM Explained: What the Number Actually Means
GSM measures density, not quality. Here's what the number really tells you, the right GSM for each detailing job, and when high GSM is the wrong choice.
Independent · Reader-supported
The headline spec is usually the wrong one.
Car gear is sold on a single big number — GSM, peak amps, 4K, PSI. We decode what those numbers actually predict, then tell you what's worth buying.
- No sponsored placementsBrands cannot pay for a spot in our rankings.
- Specs decodedWe say when the headline number is marketing.
- Dated and revisedEvery guide carries a visible last-updated date.
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What are you trying to do?
Pick the job. We'll point you at the guides that cover it — in the order we'd actually do them. Already know your budget and vehicle size?Try the Gear Finder instead.
01Wash it without adding swirl marksThe wash does more paint damage than anything else
02Dry it without water spots or streaksSecond-highest risk step, and the one people improvise
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- Buying GuideMicrofibre GSM Explained: What the Number Actually Means
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- How-ToWhy Microfibre Towels Leave Streaks (And How to Fix It)
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- ReviewThe Rag Company Gauntlet Review: Worth the Premium?
- ReviewChemical Guys Woolly Mammoth Review: Soft, But Slow
03Clean the interior properlyWhere the wrong chemistry does permanent damage
04Fix paint that is already swirledCorrection is finite — the method has to change first
05Sort out the wheels and tyresAlways first, always with separate tools
06Kit the car out, or cover a breakdownWhere the headline spec misleads hardest
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- Buying GuideBest Tire Inflators 2026: Corded, Cordless and the Trap
- Buying GuideBest Dash Cams 2026: What Actually Matters in the Spec
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- Buying GuideBest Trunk Organizers 2026: Stop the Boot Rolling Around
- How-ToHow to Jump Start a Car Safely (Pack or Cables)
If you only read three
Where to start
Buying Guide
Best Car Drying Towels 2026: Picks for Every Vehicle Size
Twisted loop or plush, 900 GSM or 1200 — which drying towel actually suits your car. Our picks for sedans, SUVs, glass and tight budgets.
Buying Guide
Best Dash Cams 2026: What Actually Matters in the Spec
Resolution is oversold and night performance is undersold. Our dash cam picks, the capacitor-vs-battery issue, and what parking mode really requires.
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