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2026. 6. 30. 작업
Does the tachometer provide any indication of fuel usage?
No, the tachometer can not be related to fuel efficiency as the tachometer is measuring the amount of rotations per minute (RPMs) of the engine. In the same gear and at the same speed your tachometer will always be at the same RPMs. However, you can be at 2000 RPMs and be barely touching the gas pedal (or completely off of it) because you are coasting down a hill or you can be at 2000 RPMs towing a trailer up a hill with the pedal to the floor. The only things you really can try to infer from your tachometer would be the higher your RPMs, the more likely it is that you are burning more fuel assuming all other factors are the same. If you change your cruising speed to keep the tach at 2000 RPMs instead of 2500 RPMs, then yes, you will probably save fuel. The other one would be fluctuations, the more consistent you are the less energy you will waste. So if you can keep your tachometer at a steady RPM you will likely be saving fuel because you are just maintaining speed instead of acceler
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2003 Hyundai Santa Fe will start then die. Then it will not start. After pumping the accelerator or holding on the floor and returning later it will start. Nothing codes out. This happens probably 15% of the time. Any ideas?
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A friend has an older Miata that was improperly stored for at least three years. Most of the time, it was not garaged. The gas is old, the battery is dead, it has not been started. It was probably parked without an oil change. He is looking to do the minimum to get this sellable, so the primary concern is the initial startup and the brakes. What would be recommended , especially regarding that first engine startup?
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I am planning to start using seafoam in my gas and oil ,how often should you a add it an how much.The label isn’t to clear about it.
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I’ve asked a few mechanics and DIYers this question and so far no consensus. Let’s say you’re 1000 miles away from next SCHEDULED oil change, and you’re about to leave on a 2000 mile road trip. Would you choose to change your oil 1000 miles early before the trip, or 1000 miles late after the trip?