Help oil choice for 05 Expedition 5.4L 3v 180k miles

[2005Expedition]

Just bought an 05 expedition XLT 2wd 5.4L 3v 180k miles, no oil leak, or smoke, or use any oil, should I stick with 5w20 or moving up to 5w30 ?

rear diff take 2 quart 75w140 right ?

 

[sgtowing]

I say stick 5w20. I use Mobil 1 extended performance. Love it.

Sent from my SCH-I535 using Tapatalk

 

[2005Expedition]

done deal thank you

 

[mindgame]

+1 to sgtowing...
However I use Royal Purple...

 

[turo]

I second 5w20 Mobil 1 extended p. U are correct on the rear diff.

 

[tonydiv]

It can't hurt to move up to a slightly thicker oil for the summer. I love Valvoline MaxLife for high mileage motors.

 

[GAINMOB]

I have 150K and still use recommended...no need to change unless ur in Alaska...im guessing Jackson Mississippi?

 

[2005Expedition]

I have 150K and still use recommended...no need to change unless ur in Alaska...im guessing Jackson Mississippi?

yes I am in Jackson MS , the truck have zero leak or burn oil, im scare using synthetic or high miles oil that have seal condition, some time it make the car leak, currently running super mobil 5w20 with FL820s plan on changing every 4 month which is 1200 miles.

 

[turo]

yes I am in Jackson MS , the truck have zero leak or burn oil, im scare using synthetic or high miles oil that have seal condition, some time it make the car leak, currently running super mobil 5w20 with FL820s plan on changing every 4 month which is 1200 miles.

To put your mind at ease...
I had a 1994 BMW 318i that had 274k miles when I sold it. Full synthetic oil. I did have to replace the valve cover and oil pan gasket at one point (age). After replacing those no leaks anywhere else. I think synthetics have come a long way and oil manufactures have perfected synthetic oils compared to when they 1st came on the market.