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Is a Cold Start RPM of 1800 Normal?

1 Answers
PaulFitz
07/29/25 10:57pm
A cold start RPM of 1800 is normal. Here are the specific details about engine RPM: 1. 800/min~1200/min: During a cold start, if the idle RPM is below 800/min or above 1200/min, it indicates poor engine condition. 2. Below 2000r/min: While driving, try to avoid keeping the engine running below 2000r/min. If the RPM is too low, the engine will lack power, and the excessive load at low RPM can damage the engine and lead to carbon buildup. 3. Above 4000r/min: When the engine operates above 4000r/min, the combustion time shortens, leading to incomplete fuel combustion and a significant increase in fuel consumption. If driving in fifth gear at this RPM, the speed typically reaches 150km/h, which is already a dangerous speed. 4. 2200~3500r/min: The most economical and optimal engine operation occurs between 2200~3500r/min. It is recommended to maintain the RPM within this range during regular driving.
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