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2020 CX5 Sport Transmission chirp between 3-4 gear

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Old Jan 21, 2026 | 12:23 PM
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Update: over a thousand miles later and still no chirp has returned. Pretty pleased at the result of a simple fluid change. I will do that again in the spring when its warmer. I hate that the manufacturers use terms like "lifetime fluid" because there really is no such thing. Great forum here, I have learned a lot!
 
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Old Jan 21, 2026 | 12:34 PM
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Originally Posted by Tdog02
Update: over a thousand miles later and still no chirp has returned. Pretty pleased at the result of a simple fluid change. I will do that again in the spring when its warmer. I hate that the manufacturers use terms like "lifetime fluid" because there really is no such thing. Great forum here, I have learned a lot!
NICE!




 

Last edited by Callisto; Jan 21, 2026 at 12:41 PM.
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Old Jan 21, 2026 | 06:32 PM
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Originally Posted by Tdog02
Update: over a thousand miles later and still no chirp has returned. Pretty pleased at the result of a simple fluid change. I will do that again in the spring when its warmer. I hate that the manufacturers use terms like "lifetime fluid" because there really is no such thing. Great forum here, I have learned a lot!
Glad to hear it!
 
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Old Jan 22, 2026 | 09:41 AM
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Callisto, you earlier mentioned Castrol ATF and recommended it. Can you tell me the exact one? I'm new to the Mazda world but its really growing on me.
 
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Old Jan 22, 2026 | 09:45 AM
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My thread has lots of service-related information

Mazda3 Things I like to do - Mazda Forum - Mazda Enthusiast Forums
 

Last edited by Callisto; Jan 22, 2026 at 09:48 AM.
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Old Apr 9, 2026 | 01:49 PM
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4/9/2026 Update

Vehicle is now at 103,224 and the issue seems resolved. I will do another fluid drop and fill in 30,000 miles and will continue with that service interval. I am pleased with the result and the daughter is enjoying her new to her ride. I am reading more about the CX-5 on a regular basis and I can see why it is a popular little SUV. It's fun to drive and easy to service. Anyway, I wanted to update on the transmission fluid change and my results.
 
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