Changed oil from 0W20 to 5W30 and ...
- Thread starter GraybeardQ60
- Start date
wemay
Site Donor 2023
Billions of dollars are spent by all the oil mfcrs to achieve the best mpg they can. Low viscosity oils has been the answer for all of them.
Both sides want it ALL.
Thin: "I get better gas mileage with just as good protection " No, no you don't.
Thick: "I protect better and get better mpg". No, no you don't
Both sides want it ALL.
Thin: "I get better gas mileage with just as good protection " No, no you don't.
Thick: "I protect better and get better mpg". No, no you don't
Yup loved looking through the catalog when it would come in the mail..
I've had the same results, long term, in my vehicles. I contribute it to piston ring seal. Last Fall I went with 5w-40 and over the winter MPG's fell slightly from average. We will see what happens this Summer.
I'm not giving up on 5w-40's. Engines run so much better.
I'm not giving up on 5w-40's. Engines run so much better.
How do you quantify that the engine runs so much better? I've tried various grades in various vehicles and it feels exactly the same to me when I drive them no matter the grade.
- Joined
- Jul 11, 2014
- Messages
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Quantify? Easy if you're not deaf, a drone driver, and monitor the dipstick
HTHS for me equals smoother/quieter engine with less oil consumption.
Enjoy the 5w30. Now go out and use a 0w40 next time for another 2mpg
HTHS for me equals smoother/quieter engine with less oil consumption.
Enjoy the 5w30. Now go out and use a 0w40 next time for another 2mpg
I would wager a blind Pepsi-Challenge test would say otherwise at least with the audible/smooth comments...Quantify? Easy if you're not deaf, a drone driver, and monitor the dipstick
HTHS for me equals smoother/quieter engine with less oil consumption.
Enjoy the 5w30. Now go out and use a 0w40 next time for another 2mpg
The first annual BITOG 20 vs 40 Challenge! Step right up ladies and gents...see if you can guess the oil grade!
Maybe 20w-50 will free up an additional 9 mpg?
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- Jul 11, 2014
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I'll have him up to a +6mpg 15w50 and +8mpg 10w60 in no time, since +2mpg from the 30grade and potential +4mpg from the 40 grade just isn't greenie enough 
Same here. I must not be that in tune with my whips
I’m thinking double EPA estimates with SAE 50 racing oilI'll have him up to a +6mpg 15w50 and +8mpg 10w60 in no time, since +2mpg from the 30grade and potential +4mpg from the 40 grade just isn't greenie enough
wemay
Site Donor 2023
Maybe not, now that I read this manual. For years H/K has allowed xw20, xw30 and in some cases xw40 in the 4 cylinders. This '23 Sonata only lists 0W-20.
I know, I know, an increase in viscosity is perfectly fine. Yes, you and I know this. My concern is unnecessary, drawn out disputes with a dealership and/or the mfcr. Don't need the headaches.
Very reasonable to consider it and yes, as much as everyone chirps that "they have to prove it was the cause" what a mess if you do...so much easier to remove that variable.
Just put 5w30 Mobil 1 in the Durango, got my fingers crossed 
These are legendary! If Big Oil just didn't kill the inventors.
VW built a 3 cylinder Turbo diesel that got 235 MPG years ago we never saw them market it did we!
