Here's some Keys:
1.Use Ford spec oil, and as mentioned above DON'T be tempted to "improve" on it with additives. Most additives are useless if not snake oil and can cause harm, especially for a new engine.
2. Best to stick with OEM filter. There are many good ones on the market but you will never go wrong with OEM. A $90 filter will not do anything special that OEM won't do.
3. Get all your stuff together, have plenty of rags, you will get oil everywhere when you pull the filter. A large drain pan makes things much cleaner. I keep a five gallon bucket around just to use for oil transport to the parts store for recycle.
4. You will need a funnel that fits your truck depending on your engine for refill. The fill ports on these engines are small and down in there so a good size funnel with proper reach is a must.
5. Warm it up for a 5-10 minute drive and then change immediately. Let it drain thoroughly and on a level surface.
6. Pull the oil filter next and be ready to catch spillage. I large rag or possibly zip lock around the filter may help here. The oil will be fairly hot.
7. Make sure the old rubber seal comes off with the filter. Doubling up the oil filter gasket will spell disaster once you start driving the truck.
8. Wet the new filter gasket with a little oil before installing. Spin filter on until the gasket touches and then tighten 3/4 turn.
9. Reinstall the drain plug and don't cross thread or over tighten. This in one step the fast change folks get wrong often and it can be disastrous.
10. Fill engine with new oil to specs. The 7.3 requires 8 quarts. Don't over fill. You can always add more oil if it's not quite to the full mark. Button everything up and run the engine for a couple minutes, checking dash for good oil pressure and under truck for any leaks.
11. Shut down and lest rest five minutes and recheck oil level and top off if needed.
That's pretty much it, but each step is important. Again get all your supplies up front. You don't want to have to make a trip to the parts store in the middle of the job.
Edit: I got this funnel for this truck (7.3 engine). It reaches the fill port nicely and is big for keeping things clean. You may want to trim the tip of the spout an inch or so to fit the fill port a little better. It's sturdy and LARGE. ?
Buy Scribner Plastics 6115R Red 45 Degree 14" D Funnel: Funnels - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
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