Anyone bump up their oil weight from 5w-30 to 10w-30 after about 5000 miles .

[purdyd]

i wonder if you check what the aussie and euro/asian trucks are being called to use, will it differ from ours?

that is where we would always see differences in other manufacturer info. the rest of the world generally got told to use what the oem actually thought the truck should use and america got told to use what got the gas mileage requirements and still let the truck last long enough to keep most people happy.

it's the same and I’m not sure why 5w-30 is that controversial. It’s been pretty much the norm for decades.

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[superj]

5w/30 has always been a great viscosity for everything i have owned until recently when they started going to that super thing 0w/20 and such. i am totally fine with 5w/30.

where i live falls perfectly in the range for 5w/30 too

 

[av8r]

Oil threads....they are the same no matter when or where you read them. You'd think people would have figured it out by now, but nope!

 

[Barely Krawlified]

For me personally, I am sticking with Pennzoil Ultra Platinum 5w-30 for the long haul.

Since obtaining my RR last August, I changed out the factory fill at 450 miles with PUP. Just to get familiar with the practice and because I like crawling under the truck, I did it again at 1,500 miles and again at 2,500 miles. It's now approaching 5K and when it hits I'll do it again.

I plan to keep up an aggressive 3K max OCI which I know is overkill. I have the space, tools and motivation as well an Autozone down the street that recycles my used oil. So other than the added cost (I get it delivered from my local Walmart for a great price) and my time there is no other downside and it gives me the warm and fuzzies so there's that as well...

Notably, PUP 5w-30 manufactured to the new ILSAC GF-7A standard (GF-6A is now fading quickly if not entirely from store shelves) also meets the new Ford WSS-M2C971-A1 spec which the 2026 RR owner's manual calls for (see screenshot); Previously, the '24 and '25 RR owner's manual called for a 5w30 meeting the WSS-M2C961-A1 specification which was a listed spec on PUP ILSAC GF-6A bottles.

 

[STX6G]

No, it does not.

https://www.mobil.com/en-us/passenger-vehicle-lube/pds/io-xx-mobil-1-high-mileage-oils

So is this just saying that the NEW dexos1 Gen3 , 0w-20 Licensed oil meets or exceeds most of the OEM standards for different manufacturers. So people will start using ( this product) as an alternative oil .

 

[STX6G]

Oil threads....they are the same no matter when or where you read them. You'd think people would have figured it out by now, but nope!

dude , if you don’t like oil threads just skip over them . And find threads you like . Or just read them and agree to disagree with some of them .

 

[av8r]

Dude, if you don’t like them

dude , if you don’t like oil threads just skip over them . And find threads you like . Or just read them and agree to disagree with some of them .

Nah, I do what I want.

 

[BriSco]

OP, since you’re convinced thicker is better oil, why don’t you drain your axles of that thin 90w oil and add 140w gear oil while you’re at it. Must be good, right?

 

[STX6G]

OP, since you’re convinced thicker is better oil, why don’t you drain your axles of that thin 90w oil and add 140w gear oil while you’re at it. Must be good, right?

Maybe because 90W is a good heavy wt oil for the gears . But a better synthetic oil will be on my list at about 50,000 miles . And i’m 66 years old and have riding Harley’s for 40 years so believe me I known a very little about thick oils .
And I never get oil changes , I still do them myself on all my rides.

 

[Bill W]

The only positive in going 10w30 is less viscosity index improvers.

 

[RB205]

OP, since you’re convinced thicker is better oil, why don’t you drain your axles of that thin 90w oil and add 140w gear oil while you’re at it. Must be good, right?

You joke about this but if you look up the Dana specifications for Advantek axles, they actually do call for 75w140 in the rear. Ford specifies thinner than the axle manufacturer. I'm planning on running 75w140 when I drain and fill my axles at 10K.

 

[purdyd]

I’m thinking of the Toyota tacoma with 0-20w.

https://www.tacoma4g.com/forum/threads/5w-30.19287/

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