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0W-20 vs. 5W-30

Old Nov 28, 2025 | 04:03 PM
  #1  
jake3_14's Avatar
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Question 0W-20 vs. 5W-30

I own a 2025 CR-V Hybrid, and I've not yet had a maintenance minder alert to change my oil. I have however, watched this video
on why car manufacturers recommend different engine oils for the same engine in different countries. The summary is that in the manufacturers of newer vehicles recommend 0W-20 oil in the U.S. to comply with the EPA fuel efficiency regulation (CAFE standard), whereas, elsewhere in the world, the manufacturers recommend 5W-30 for better engine durability. In addition, vehicles in hotter climates will breakdown a thin oil (the 0W-20) more quickly than a thicker oil (5W-30). I live in an area that gets 4.5 months of 90+ F temperature annually.

Do other member of this forum who live in hotter climates use 5W-30 rather than the Honda-recommended 0W-20 oil?
 
Old Nov 28, 2025 | 09:45 PM
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Default Credibility

It is important that you are able to separate the wheat from the chaff for things found on the internet.

Here is a video from a credible source on your poser:

And then there is the owners manual:

So warranty may be an issue for your consideration. However it is your V so you can do whatever you choose.

 

Last edited by Just Ducky; Nov 28, 2025 at 09:56 PM.
Old Nov 29, 2025 | 01:18 AM
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Default Thank you

Thanks for alerting me to the critique of an AI-generated video. I feel 1 billion years old that I was fooled.
 
Old Dec 7, 2025 | 04:06 PM
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welcome to the forum. Just info. I purchased a 07 base Fit, first 100k miles oil change by Palmdale Honda dealership. there after i did my own oil change. car started with 5w-20 at 285k( 2020) I gave this car to my grandson in Idaho, still running still using 5w-20. mobil. oil burn from new 1 qt per 7k miles.
 
Old Dec 9, 2025 | 02:09 PM
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I recently purchased a 2021 EX-L. I recently switched to Castrol 5W30 Synthetic at just shy of 32,000 miles. My Subaru experience with fuel soaking soured me on 0W oils (not to say that the CR-V will never experience that). We also switched our 2014 BMW X3 to Castrol 5W-30 synthetic as well. I am of the opinion that the 5W offers better viscosity, and my mechanic (former certified BMW technician) agrees.
 
Old Dec 9, 2025 | 07:02 PM
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Default Rain Soaked

Originally Posted by Jethro
I recently purchased a 2021 EX-L. I recently switched to Castrol 5W30 Synthetic at just shy of 32,000 miles. My Subaru experience with fuel soaking soured me on 0W oils (not to say that the CR-V will never experience that). We also switched our 2014 BMW X3 to Castrol 5W-30 synthetic as well. I am of the opinion that the 5W offers better viscosity, and my mechanic (former certified BMW technician) agrees.
If you mean oil dilution and you have a GDI + Turbo engine and you live in a warm/hot climate then Bimmer Guy makes a good case. Another path is more frequent oil changes.

However, the OP has an Atkinson Cycle GDI engine. Mine is an Atkinson Cycle but no GDI.
 
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