amirza786
Senior Member
- First Name
- A
- Joined
- Oct 4, 2018
- Threads
- 87
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- 3,854
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- 3,947
- Location
- Northern California
- Vehicle(s)
- 2022 Polestar 2, 2010 Lexus IS 350 Sport
- Thread starter
- #1
So, where do I start? I know that this has been a pretty hotly debated issue, and I don't want to beat this to death, but I have some bad news. I really personally felt that switching to 0W30 fully synthetic over the 0W20 factory fill was the way to go. I have seen a ton of back and forth, so I decided to contact Mobile, the makers of Mobile 1 on their professional advice, and here is their answer:
"Thanks for writing in. Honda does not allow for a 0W-30 oil in that engine. I'd hate to see you have any trouble with your warranty. My recommendation is to drain the 30 weight oil and go back to the 0W-20. Honda did their testing of that engine with a 20 weight oil in mind. As to whether a 30 would cause damage, that would be a question for Honda. It is possible. Please contact us with any additional questions."
I then contacted Honda, and basically they told me the same thing...they only allow 0W20, this is what they designed and tested for, and told me I needed to drain and refill with the approved oil, my warranty would be voided if any damage occured. I have asked them to send me this in writing.
I know AMSOIL oil has this blog about how this is BS and it's all about CAFE standards etc. and 0W30 won't damage engines "designed" for 0W20, but the fact is I really don't want to take that chance and give Honda an excuse to void my engine warranty should something go wrong. Anyway, I thought I would put this information out there for anyone to make an informed decision one way or the other. Since I am no expert in this matter, I have decided to default on the side of caution
"Thanks for writing in. Honda does not allow for a 0W-30 oil in that engine. I'd hate to see you have any trouble with your warranty. My recommendation is to drain the 30 weight oil and go back to the 0W-20. Honda did their testing of that engine with a 20 weight oil in mind. As to whether a 30 would cause damage, that would be a question for Honda. It is possible. Please contact us with any additional questions."
I then contacted Honda, and basically they told me the same thing...they only allow 0W20, this is what they designed and tested for, and told me I needed to drain and refill with the approved oil, my warranty would be voided if any damage occured. I have asked them to send me this in writing.
I know AMSOIL oil has this blog about how this is BS and it's all about CAFE standards etc. and 0W30 won't damage engines "designed" for 0W20, but the fact is I really don't want to take that chance and give Honda an excuse to void my engine warranty should something go wrong. Anyway, I thought I would put this information out there for anyone to make an informed decision one way or the other. Since I am no expert in this matter, I have decided to default on the side of caution
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