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Off-Topic Discussion
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Thread spin off about possible change to Rotella Diesel Oil
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<blockquote data-quote="HaulinAshe" data-source="post: 634573" data-attributes="member: 1875"><p>I can appreciate all the statistical data offered in this thread.</p><p></p><p>In recent months, we've seen a noticeable increase in valve guide and cam wear from race engines running conventional Rotella-T as compared to both the typical history of those riders/engines, and the same type engines running synthetic Rotella-T. Whether or not that's due to more synthetic Rotella-T being "old stock" or not, I cannot say.</p><p></p><p>But at this point, I'm glad I've stuck with my old dirt habits and stayed with Rotella-T Synthetic, rather than conventional. As race engine mechanics, we get sometimes get to see things happen early, because we are tearing the same engines regularly and measuring for small changes.</p><p></p><p>At 75,000 miles, my '07 FJR had polished cam lobes, zero scoring on the buckets, and you could still read all the valve shim labels like the day they were made. The cam chain was absolutely like new, the CCT was clean and fully functional, compression was within 10 lbs. across all four cylinders. I have no idea what condition the CatC is in, and frankly could care less until it becomes a problem child and requires amputation. I call that a healthy engine and it has never seen anything but Rotella-T Synthetic from 18.5 miles on the odo.</p><p></p><p>But you can bet I'm going to keep my "ear to the ground" for what Shell and others may be doing to our beloved lubrications.</p><p></p><p> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p></p><p>Thanks to everyone for the heads-up and suggestions.</p></blockquote><p></p>
[QUOTE="HaulinAshe, post: 634573, member: 1875"] I can appreciate all the statistical data offered in this thread. In recent months, we've seen a noticeable increase in valve guide and cam wear from race engines running conventional Rotella-T as compared to both the typical history of those riders/engines, and the same type engines running synthetic Rotella-T. Whether or not that's due to more synthetic Rotella-T being "old stock" or not, I cannot say. But at this point, I'm glad I've stuck with my old dirt habits and stayed with Rotella-T Synthetic, rather than conventional. As race engine mechanics, we get sometimes get to see things happen early, because we are tearing the same engines regularly and measuring for small changes. At 75,000 miles, my '07 FJR had polished cam lobes, zero scoring on the buckets, and you could still read all the valve shim labels like the day they were made. The cam chain was absolutely like new, the CCT was clean and fully functional, compression was within 10 lbs. across all four cylinders. I have no idea what condition the CatC is in, and frankly could care less until it becomes a problem child and requires amputation. I call that a healthy engine and it has never seen anything but Rotella-T Synthetic from 18.5 miles on the odo. But you can bet I'm going to keep my "ear to the ground" for what Shell and others may be doing to our beloved lubrications. :) Thanks to everyone for the heads-up and suggestions. [/QUOTE]
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Thread spin off about possible change to Rotella Diesel Oil
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