Originally Posted by Houten
Sorry question here from the mechanically challenged: Drain first then swap filter?
Also when checking for leaks should i rev the engine a bit or just let it idle? And how long to test for leakage?
Also do you recommend preloading the filter since its sitting with hole up?
Is there any reason that they can void the warranty for self oil change? (besides making stupid mistake like forgetting the drain plug), I plan to buy filter from dealer.
While it doesn't matter much, I remove the oil filter first. Then I can install the new filter while the crankcase drains.
Once the engine has run for a minute or so, rev it to around 2,000 RPMs for a few seconds. This will build oil pressure to near its maximum level and may identify leaks that wouldn't occur at idle.
I don't preload the filter because it's messy and it introduces a batch of unfiltered oil into the engine. If you want to avoid some of the start-up clatter crank the engine for a few seconds with the accelerator floored. Gas is shut off when you do this but the oil pump should fill the filter.
Changing your own oil shouldn't jeopardize your warranty but make sure you keep receipts for oil and filter and record date and mileage. To be extra careful, take a picture of the oil, filter and receipt and email them to yourself. This is harder to lose and also gives evidence you used oil that meets Ford's specs (WSS...945 - see owner's manual).