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Message: <blockquote data-quote="Shadowrider" data-source="post: 3431494" data-attributes="member: 3099">Well crap. I just looked it up and the F450 we had was a completely different engine. We had the V10 Triton and it was only 6.8L. I thought they had just bumped them up to 7.3L in the years since and that's the new version you had. I think it had a 4 speed auto but it may have been a 5 speed. It was a 2004 model IIRC. The Tritons get a bad rap IMO. It's a very smooth running engine and I suspect a lot of the problems with timing chain tensioners, cam phasers, etc. are engine oil related. I know my 5.4 calls for 5W20 oil. The same exact engine in the same exact truck specs 10W30 in Australia. That's Ford trying to milk the CAFE mandates. I've been running 10W30 for awhile now (basically since I got it with 54K on it) and so far none of those issues. I'm at 127K on it.</blockquote>