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Discussion Starter #1
Sould i go 3k miles or 5k miles between oil changes? Just got it changed today, the valvoline full synthetic diesel oil. next change should be in 5k or 3k miles?

thanks guys
 

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Actually, I was talkin to my mechanic the other day. We got on the subject of oil changes. I dunno if this applies to your 7.3, but my 6.0 has had a few "kick back" problems for about 6 months now. I changed the EGR, had the PCM updated and everything. Now, it only kicks back every 3k miles. After an oil change it drives like a brand new truck. Apparently theres a service bulletin out from Ford addressing this problem. I guess what's happening is the oil system is getting gunked up after about 100K miles or so. Ford's fix (believe it or not) is doing 3 oil changes in 3k miles. Do an oil change, run it hard, do another change, run it hard, then do the last change and it should be good for the usual 5-7K intervals between changes. Sorry about the long winded answer...but I'd say about every 5-6k is good.
 

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I am running Rotella synthetic and am going to push mine off until about 7k-8k this time.
 

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change my oil ever 3k.had been running delo 400 but have switched to lucas 15w/40.
 

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Change mine every 3k with the Motorcraft oil
 

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Some ol timer told me I am supposed to be running Motorcraft oil...because it has some anti-foaming agent in it...but doesn't shell rotella have that too?
 

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Discussion Starter #9
bump bumpbump
 
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