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SVT Shelby GT500
Official UOA thread with oil poll
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<blockquote data-quote="UnleashedBeast" data-source="post: 11086896" data-attributes="member: 112023"><p>Shell Rotella T6 5W-40 offers a lot of bag for the buck, gives very good UOA results, and has a tough additive package for anti-wear and detergent additives. The only things I do not like about it is....</p><p></p><p>It's highly refined petroleum and not a true synthetic. This also means it has much higher NOACK Volatility. This is increasing oil evaporation and burn off that is accumulating inside your intake manifold. </p><p></p><p>The formulation also has very high amounts of magnesium, and this is OK in a diesel engine. It's used as a detergent additive in place of calcium, and from what I have read isn't required or suggested for gasoline engine use...and it's not as good in a formulation as calcium. </p><p></p><p></p><p></p><p>Since there is a lot of soot in a diesel engine, it's effective. The draw back is....Rotella T6 has a high % of NOACK Volatility. This makes it not desirable for use in a high performance gasoline engine, especially the Shelby. </p><p></p><p></p><p></p><p><strong><a href="http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2089814" target="_blank">BITOG</a></strong> - thread where I pulled the quotes</p><p></p><p>[ATTACH=full]236654[/ATTACH]</p><p></p><p></p><p></p><p><img src="http://anchoredbygrace.com/smileys/spit.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p></p><p>No testing so far with the XL version of 10W-40. It is a refined petroleum mixed with true synthetic. I've always required the best and didn't mind investing another $1.90 per quart for a no compromised performance. That's why I selected Amsoil AMO 10W-40 like Evasive posted about. </p><p></p><p>They call it XL because it has a longer useable drain interval compared to the 100% refined petroleum OE formulations. It has an "xtended life" booster from the added true synthetic base stock blended in. </p><p></p><p>Signature Series is their best formulations, but Amsoil AMO 10W-40 doesn't carry the name due to a different additive package and because it's more viscous than a 30 grade.</p></blockquote><p></p>
[QUOTE="UnleashedBeast, post: 11086896, member: 112023"] Shell Rotella T6 5W-40 offers a lot of bag for the buck, gives very good UOA results, and has a tough additive package for anti-wear and detergent additives. The only things I do not like about it is.... It's highly refined petroleum and not a true synthetic. This also means it has much higher NOACK Volatility. This is increasing oil evaporation and burn off that is accumulating inside your intake manifold. The formulation also has very high amounts of magnesium, and this is OK in a diesel engine. It's used as a detergent additive in place of calcium, and from what I have read isn't required or suggested for gasoline engine use...and it's not as good in a formulation as calcium. Since there is a lot of soot in a diesel engine, it's effective. The draw back is....Rotella T6 has a high % of NOACK Volatility. This makes it not desirable for use in a high performance gasoline engine, especially the Shelby. [B][URL="http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2089814"]BITOG[/URL][/B] - thread where I pulled the quotes [ATTACH=full]236654[/ATTACH] [IMG]http://anchoredbygrace.com/smileys/spit.gif[/IMG] No testing so far with the XL version of 10W-40. It is a refined petroleum mixed with true synthetic. I've always required the best and didn't mind investing another $1.90 per quart for a no compromised performance. That's why I selected Amsoil AMO 10W-40 like Evasive posted about. They call it XL because it has a longer useable drain interval compared to the 100% refined petroleum OE formulations. It has an "xtended life" booster from the added true synthetic base stock blended in. Signature Series is their best formulations, but Amsoil AMO 10W-40 doesn't carry the name due to a different additive package and because it's more viscous than a 30 grade. [/QUOTE]
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