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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Cranking with full throttle following oil change
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<blockquote data-quote="zemuron99" data-source="post: 1414217" data-attributes="member: 26516"><p>I see that I'm in a pretty significant minority (8% so far) that do this (Crank after oil change) until I see the oil pressure gauge come up. Since it's run by a simple open/closed switch, I know the entire system is pressurized at that point. Usually takes two cycles-one full cycle (the starter auto-stops after about 8 seconds) followed by 2-3 seconds the second time. Like EricM, I can definitely hear the difference (I messed up one time and forgot to press the accelerator). Had pretty notable ticking and a definite 2-3 second delay until the oil gauge came to life. I'll also do the pre-pressurize starting if I've left it sit more than two days, which frequently happens, just to ensure the cam phasers are fully filled/primed. I like the idea of fully priming/pressurizing it with minimal load on all the moving parts. Those with the opinion that it's not only unnecessary but BS are welcome to their opinions, I won't try to convince them otherwise, it's their truck and their money do to with as they prefer. For me, if it may help in even the slightest degree it's worth the minimal time investment. Also, given that these engines are designed to work with the auto stop/start, the wear on the starter motor/flex plate is inconsequential (I've programmed mine thru FORScan to disable auto stop/start). I do agree that modern oils, esp syn-blends or full synthetics do provide greater residual surface protection than older dino-oils would. But, there's still the delay between getting from the sump pan, through the empty filter and to the moving parts to consider.</p><p></p><p>Ultimately it just comes down to personal preference. If I really had my way, all v-configured engines would have an oil fill cap on BOTH sides, so I could fill 50-50 on each side. But I'm probably wayyyyyyy over thinking that one...Ha!</p></blockquote><p></p>
[QUOTE="zemuron99, post: 1414217, member: 26516"] I see that I'm in a pretty significant minority (8% so far) that do this (Crank after oil change) until I see the oil pressure gauge come up. Since it's run by a simple open/closed switch, I know the entire system is pressurized at that point. Usually takes two cycles-one full cycle (the starter auto-stops after about 8 seconds) followed by 2-3 seconds the second time. Like EricM, I can definitely hear the difference (I messed up one time and forgot to press the accelerator). Had pretty notable ticking and a definite 2-3 second delay until the oil gauge came to life. I'll also do the pre-pressurize starting if I've left it sit more than two days, which frequently happens, just to ensure the cam phasers are fully filled/primed. I like the idea of fully priming/pressurizing it with minimal load on all the moving parts. Those with the opinion that it's not only unnecessary but BS are welcome to their opinions, I won't try to convince them otherwise, it's their truck and their money do to with as they prefer. For me, if it may help in even the slightest degree it's worth the minimal time investment. Also, given that these engines are designed to work with the auto stop/start, the wear on the starter motor/flex plate is inconsequential (I've programmed mine thru FORScan to disable auto stop/start). I do agree that modern oils, esp syn-blends or full synthetics do provide greater residual surface protection than older dino-oils would. But, there's still the delay between getting from the sump pan, through the empty filter and to the moving parts to consider. Ultimately it just comes down to personal preference. If I really had my way, all v-configured engines would have an oil fill cap on BOTH sides, so I could fill 50-50 on each side. But I'm probably wayyyyyyy over thinking that one...Ha! [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Cranking with full throttle following oil change
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