The air conditioning isn't cooling. I checked the pipes and found no leaks. However, after adding refrigerant, it was gone in less than two months. For an 11-year-old imported Mazda CX-7, what usually causes this issue?

How is the 2010 imported Mazda CX-7?

The air conditioning isn't cooling. I checked the pipes and found no leaks. However, after adding refrigerant, it was gone in less than two months. For an 11-year-old imported Mazda CX-7, what usually causes this issue?

Hello everyone! I bought a Jeep Compass in 2017. The dealership initially said this car requires 95 octane fuel, and I've been using it since 2017. However, when I drive, there's a jerking sensation when I decelerate and then accelerate again. Also, when I turn on the air conditioning, the engine noise becomes particularly loud. My car has less than 30,000 kilometers and I mainly use it for commuting. Recently, I tried using 92 octane fuel, but I found that the power was insufficient. When I tried to overtake, the car wouldn't accelerate, unlike when using 95 octane. So, I'm wondering, what fuel do you all use? Which type is better for the car?

Jetur X70, 2020 model. I started having a coolant leak, and when pressure was applied, the leak point was found. The four-way valve was replaced, and the heating pipe and water inlet pipe were tightened. It was also discovered that the water pump was leaking, and eventually, everything was replaced. However, after refilling the coolant, the mechanic found that the engine temperature was high, but it drops as soon as the heater is turned on. They spent half a day but couldn't find the problem, and the car not being fixed has caused a lot of issues. Have you encountered this before? How did you handle it?

The engine warning light came on after driving over 10,000 kilometers, right when it was time for maintenance. The service station checked and found the gas cap wasn't properly sealed, and they reset the computer. However, the yellow light came back on in less than half a month. The service station is too far away, and I don't have time to go there. Does anyone know what the problem might be? Any help would be appreciated.

I got a 2021 Murano in July 2021, and just recently on a long drive, I found that the AC was blowing hot air with no cooling. After visiting the repair shop and refilling the refrigerant, the AC started cooling again. The car is just 3 years old, is it normal for the refrigerant to run out so quickly, or could there be a leak?