How does poor-quality engine oil contribute to overheating problems in Changan Kalam in Pakistan?

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How does poor-quality engine oil contribute to overheating problems in Changan Kalam in Pakistan?

Thick o r old oil increases engine friction and heat. Are workshops using the recommended oil grade for Pakistani climate?

Zarnish asked on 25 Jun 2025 13:02:00 pm

1 Answer

17 views |

Car Mechanic Expert - on 25 Jun 2025 13:16:40 pm

Bad o r old oil causes:

Higher internal friction, adding to engine heat.

Reduced heat transfer from pistons, leading to higher cylinder temps.

Workshops sometimes use non-recommended viscosity grades e.g., too thick 20W-50 instead of 5W-30.

➡️ Always use API SN-rated oil, with correct viscosity based on your regions climate.