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SVT Shelby GT500
Official UOA thread with oil poll
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<blockquote data-quote="UnleashedBeast" data-source="post: 10899529" data-attributes="member: 112023"><p>With the second 500 mile interval, you are changing the filter each time. This helps clear most initial wear metals from your engine. Use cheaper Ford FL820 oil filters for the break in sessions. No point in wasting money. They are also correct about using cheap conventional oil, no synthetic, for break in. IMO, if it were MY $$$$ engine...this is what I would use to break it in. </p><p></p><p><strong><a href="http://www.amsoil.com/storefront/brk.aspx?zo=1859448" target="_blank">Amsoil Break in oil</a></strong></p><p></p><p></p><p></p><p>Most of us waited until 1,500-2,000 miles to dump the factory fill. Follow MMRs suggestion since they built the engine. </p><p></p><p>I gave Amsoil 10W-30 a 345 mile run today, and it did great. Oil pressure at the peak showed idle pressure to be ~23-25 PSI. Cruising pressure ranged from 65-73 PSI (1,800-2,200 rpm). </p><p></p><p>Just keep an eye on your oil pressure when you get the oil really hot with those turbos. If you have oil pressures ever drop under 20 PSI @ hot idle, you may need to increase up to a 10W-40. </p><p></p><p>I also want to add that I had no improved mpg with 10W-30 versus the same 345 mile run made with 10W-40. If the UOAs don't return any better performance, I may switch back to the heavier lubricant.</p></blockquote><p></p>
[QUOTE="UnleashedBeast, post: 10899529, member: 112023"] With the second 500 mile interval, you are changing the filter each time. This helps clear most initial wear metals from your engine. Use cheaper Ford FL820 oil filters for the break in sessions. No point in wasting money. They are also correct about using cheap conventional oil, no synthetic, for break in. IMO, if it were MY $$$$ engine...this is what I would use to break it in. [B][URL="http://www.amsoil.com/storefront/brk.aspx?zo=1859448"]Amsoil Break in oil[/URL][/B] Most of us waited until 1,500-2,000 miles to dump the factory fill. Follow MMRs suggestion since they built the engine. I gave Amsoil 10W-30 a 345 mile run today, and it did great. Oil pressure at the peak showed idle pressure to be ~23-25 PSI. Cruising pressure ranged from 65-73 PSI (1,800-2,200 rpm). Just keep an eye on your oil pressure when you get the oil really hot with those turbos. If you have oil pressures ever drop under 20 PSI @ hot idle, you may need to increase up to a 10W-40. I also want to add that I had no improved mpg with 10W-30 versus the same 345 mile run made with 10W-40. If the UOAs don't return any better performance, I may switch back to the heavier lubricant. [/QUOTE]
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Official UOA thread with oil poll
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