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2012-2013 Boss 302 Mustang
Something to consider when the oil change topic happens here
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<blockquote data-quote="Swiss Boss" data-source="post: 14239720" data-attributes="member: 153050"><p>I think both of them are correct to a certain point but miss some information.</p><p></p><p>When Grant ask about HTHS I looked for more info and then I found this thread that is pretty interesting</p><p></p><p><a href="http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2000048&page=1" target="_blank">http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2000048&page=1</a></p><p></p><p>Now my question for track car because that's all it's about.</p><p></p><p>Which one protect the engine better?</p><p></p><p>10w-40(Amsoil) @ 4.3 HTHS</p><p><a href="http://www.amsoil.com/shop/by-product/motor-oil/gasoline/sae-10w-40-synthetic-premium-protection-motor-oil/?code=AMOQT-EA" target="_blank">http://www.amsoil.com/shop/by-product/motor-oil/gasoline/sae-10w-40-synthetic-premium-protection-motor-oil/?code=AMOQT-EA</a></p><p>or</p><p>5w-50 (Castrol Edge) @ 3.7 HTHS</p><p>http://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/9A32D5E3D16D0C5B80257C1600466D1C/$File/BPXE-9AJFL6.pdf</p><p></p><p>I couldn't find the HTHS for the motorcraft 5w-50 so if somebody has it please post it.</p><p>But looking for other brand carrying Ford specification it looks like the HTHS is @ 3.7 (minimum required for a 50 grade oil)</p><p></p><p>I'm not a brand loyalist just looking for the best quality for $$.</p><p>So far Amsoil 10w-40 has been great for that</p></blockquote><p></p>
[QUOTE="Swiss Boss, post: 14239720, member: 153050"] I think both of them are correct to a certain point but miss some information. When Grant ask about HTHS I looked for more info and then I found this thread that is pretty interesting [URL]http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2000048&page=1[/URL] Now my question for track car because that's all it's about. Which one protect the engine better? 10w-40(Amsoil) @ 4.3 HTHS [URL]http://www.amsoil.com/shop/by-product/motor-oil/gasoline/sae-10w-40-synthetic-premium-protection-motor-oil/?code=AMOQT-EA[/URL] or 5w-50 (Castrol Edge) @ 3.7 HTHS http://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/9A32D5E3D16D0C5B80257C1600466D1C/$File/BPXE-9AJFL6.pdf I couldn't find the HTHS for the motorcraft 5w-50 so if somebody has it please post it. But looking for other brand carrying Ford specification it looks like the HTHS is @ 3.7 (minimum required for a 50 grade oil) I'm not a brand loyalist just looking for the best quality for $$. So far Amsoil 10w-40 has been great for that [/QUOTE]
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2012-2013 Boss 302 Mustang
Something to consider when the oil change topic happens here
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