2026-08-29 · 4 min read
Tyre Pressure Guide: What's Correct & What to Do When TPMS Lights Up
Too low wastes fuel and risks a blowout; too high kills grip. In Malaysia's heat, tyre pressure matters more than you think.
Where to find the correct PSI
The correct tyre pressure for your car is printed on the door-jamb sticker (open the driver's door and look on the door frame) or in the owner's manual. Front and rear pressures may differ; typical range is 30–36 PSI.
Do NOT read the number on the tyre sidewall — that is the maximum rated pressure, not the recommended inflation pressure. Inflating to that figure will over-inflate the tyre.
Under-inflation vs over-inflation
Under-inflation: larger contact patch increases rolling resistance (higher fuel consumption); shoulder wear accelerates; excess heat builds up at high speed increasing blowout risk; steering feels vague.
Over-inflation: centre tread wears faster; road vibration transmits more harshly; tyre grip decreases and wet braking distances lengthen.
Malaysia weather tip: inflate cold
Tyre pressure rises with temperature — roughly 1 PSI per 10°C. Malaysia's heat means a car parked in the sun can read significantly higher than actual. Always inflate in the morning before driving (cold tyre), not immediately after driving, as the hot-tyre reading will be higher and the tyre will under-inflate once it cools.
TPMS warning light (tyre pressure monitoring system) means at least one tyre is below the safe threshold — inflate it promptly and check for a slow puncture. 4M Car Care offers free tyre pressure and condition checks — drop in or WhatsApp to book.