2021 Ford Gas 7.3L V-8 1st Oil Change ?

[jackreno]

What is the mileage of the 1st oil change on a new 7.3L gas motor.

[Steve-W]

Originally Posted by jackreno

What is the mileage of the 1st oil change on a new 7.3L gas motor.

Owners manual states 7500 mi but then lists exceptions for severe use. My take is that carrying the house around is always severe use. I change my oil at 5000 miles. As I change the oil my self it may go a bit longer or more often less depending upon the next trip. Oil change and steering gear lube takes about an hour or so, $40 in supplies.
I'm not sure how the oil life display is programed so I keep an eye on it, but it seems to be inaccurate for what our chassis carries.

[Shadow5501]

Originally Posted by Steve-W

Owners manual states 7500 mi but then lists exceptions for severe use. My take is that carrying the house around is always severe use. I change my oil at 5000 miles. As I change the oil my self it may go a bit longer or more often less depending upon the next trip. Oil change and steering gear lube takes about an hour or so, $40 in supplies.
I'm not sure how the oil life display is programed so I keep an eye on it, but it seems to be inaccurate for what our chassis carries.

I think you maybe looking at the intervals for the old v10. The new V8 has a 10,000 mile normal service interval and the same 5,000 mile severe service interval. The owners manual states that primarily towing or using a car top carrier (???) qualifies as severe duty, but doesn’t mention operating near GVWR as severe duty. That said the language in the manual seems very generic so apply your own wisdom.

So I dunno. Probably more than 5,000 isn’t a big deal, but certainly less than 10,000. Figure out how to weave that service interval into your annual usage in a convenient way and you’ll be fine.

2020 chassis owners manual: https://www.fordservicecontent.com/F...20.pdf#page169

2021 chassis owners manual (same service intervals) : https://www.fordservicecontent.com/F...20.pdf#page171

[Steve-W]

Originally Posted by Shadow5501

I think you maybe looking at the intervals for the old v10. The new V8 has a 10,000 mile normal service interval and the same 5,000 mile severe service interval. The owners manual states that primarily towing or using a car top carrier (???) qualifies as severe duty, but doesn’t mention operating near GVWR as severe duty. That said the language in the manual seems very generic so apply your own wisdom.

So I dunno. Probably more than 5,000 isn’t a big deal, but certainly less than 10,000. Figure out how to weave that service interval into your annual usage in a convenient way and you’ll be fine.

2020 chassis owners manual: https://www.fordservicecontent.com/F...20.pdf#page169

2021 chassis owners manual (same service intervals) : https://www.fordservicecontent.com/F...20.pdf#page171

Your correct, That’s what I get for posting before coffee .
I was thinking of the class C I had with the V10.

[SimRacer]

Agree with Shadow,, ~5000. Seems to me that a 12-13 foot box on the chassis qualifies as a "using a car top carrier".

[jackreno]

Thanks, I will stick with the 5000 mile rule than, its brand new and don't want any warranty issues with Ford..

[Shadow5501]

Originally Posted by SimRacer

Agree with Shadow,, ~5000. Seems to me that a 12-13 foot box on the chassis qualifies as a "using a car top carrier".

I can’t argue with that logic!

[ClarD]

Originally Posted by Steve-W

I'm not sure how the oil life display is programed so I keep an eye on it, but it seems to be inaccurate for what our chassis carries.

The oil life indicators are pretty sophisticated in my cars. They monitor engine hours, calendar months, RPM, throttle, temp, and present a variable mileage percentage.

I find that the estimate is around the manufacturer mileage spec on my cars.

The 7.3-liter V8 engine oil change interval is 10,000 miles.
With my 2021 Vision at 2573 miles, the Oil Life gauge shows 63% Remaining (approximately 7,000 mile change interval)

Our car hit the calendar interval on the first oil change, at the beginning of Covid.

[TFell]

Mine has about 6200 miles. Doing it tomorrow!

[jomo]

I'd do a 500 mile break in change or if yours came with the standard 1500 miles on it then I'd do it right away.

[jackreno]

Originally Posted by jomo

I'd do a 500 mile break in change or if yours came with the standard 1500 miles on it then I'd do it right away.

500 or 1000 mile break in has gone with the wind some years back as I recall, maybe still ok to do but don't know any auto/truck manufacture that does this anymore.

Now I did just buy a new Ural sidecar motorbike and it says 600 mile for the 1st oil/gear change, but its Russian made so maybe its a good idea..

[DavidEM]

Brake in oil changes were necessary when engines were milled and honed with less than perfect bearing surfaces. The oil change was necessary to flush out all of the small metal particles produces as these surfaces wore in. Today they are milled and honed so much better that this is no longer required. Also filter elements are better today at picking up any small metal particle produced.

David

[jomo]

Originally Posted by jackreno

500 or 1000 mile break in has gone with the wind some years back as I recall, maybe still ok to do but don't know any auto/truck manufacture that does this anymore.

Now I did just buy a new Ural sidecar motorbike and it says 600 mile for the 1st oil/gear change, but its Russian made so maybe its a good idea..

With the new filter cartridges you can see what comes out of a new car engine.
Toyota, Mercedes ect... So I'll stick to the old fashioned rule of 500 miles. Mfg's of course say its not necessary but if you plan on keeping it for a while then do as you feel.

[mack73]

Mine came with 2500 delivery miles soo....

My plan is every 5k. I did mine at 3600 as I was going on a 2500 mile trip and didn't want to wait till I got back. The dash said I was still at 71% life which would put it on track for a 10k interval