Switched to 5W-30 from 0W-20

[madar]

Just had to say i came back to this thread and read through the entire thing again! So here is the thing. It is THIS is one of the posst that originally inspired me to put 5w30 in my BRAND NEW 2025 Skyactiv NON Turbo engine a few months back... So I did that. Instead of putting in 0w20, i changed it out at about 1300 miles for break in and used 5w30 Pennzoil Ultra Platinum. Car ran good.. no complaints really.. But then i began to doubt i made the right decision because I started digging deeper. Found a LOT of people commenting on how their engines , skyactiv and others have gonn 200k , 300 k on a diet strictly of 0w20. .. PLUS i read a lot about how amazing the Mazda 0w20 oil with moly is (and it really is great) Soo....After That interval, I decide to go Back to the 0w20 Mazda oil with moly.. BUT.. after reading this amazing tthread again,. after taking in ALL ive learned, ALL ive read and researched, i am 100 percent convinced now, NEXT oil change after this one GOING TO 5w30 and sticking with it!

I just ordered another five quarts of mazda 0w20 moly oil so it will have to be after THIS next oil change, but maybe i will do an earlier next oil change for the hot texas summer coming up. So there you have it. You 5w30 guys have me absolutely convinced on this now. It took me a few times of going through this thread to drill it in my head, LOL.. 5w30 for me next oil change, then for the life of the car. So my 2025 cx5 will see less than 7,000 miles with the 0w20 before i get to put in the 5w30. So thank you all for your input and charts, and manual pages, philosophy, reason, etc. I was spending way too much time studying this, but iin the long run, I think it will pay off. I must add that BOTH sides of the debates out there in this world about 0w20 vs 5w30 for this engine (and others) have VERY good and valid points. But in the end, the 5w30 wins it for me. Sorry for the novel but just had to come say this on this amazing thread! Im so glad it was never closed!!!!

Next i will have to decide if I will go with with amsoil 5w30 signature or Pennzoil Ultra Platinum 5w30 (cost not a factor) but thats a debate for another day. Thanks all

Honestly, if you plan on keeping the car for a long time, I wouldn't go past 5000 miles on an OCI. Amsoil is very good oil, 5w-30 Signature Series is what I'm currently using. Oil is relatively cheap compared to a engine replacement.

 

[madar]

Ford has replaced 5W-20 with 5W-30 for most engines, naturally aspirated and turbocharged.

Now that the CAFE standards are being rolled back I think you're going to see a lot of this, it should be telling if car manufacturers start using thicker oils.

 

[bojo]

Now that the CAFE standards are being rolled back I think you're going to see a lot of this, it should be telling if car manufacturers start using thicker oils.

I thought about this exact same thing the other day. I totally agree.

 

[SparkYellow]

@bojo It it awesome that you're figuring this out from the beginning of your ownership. I didn't look into it until much later on, like 8 years and 150K miles in.