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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="Grant808" data-source="post: 14220878" data-attributes="member: 74892"><p>That doesn't make any sense at all. I understand in your data that the MC shears rapidly. Are you saying if you change the MC 5w50 per the manual for track use that HT/HS doesn't matter?</p><p></p><p>Er...not sure where you're getting that data, but pretty sure that's not quite right either. The specific heat of oil is not different with different viscosities. Perhaps you mean to say they generate less heat?</p><p></p><p>And are you saying that less viscous lubricants have a higher average viscosity in extreme conditions? Is that a typo?</p><p></p><p></p><p>Funny you mention the oil to air cooler...one of the Bosses I was talking about did just that. Ditched the stock oil/coolant setup for a huge oil/air. 270ish pan temps in 85* ambient. Roadrunners make a LOT of heat on the top end. It's all in the RPM. </p><p></p><p>So far the only setups that seem to easily take extreme heat (IMO, 85F+) use both the stock cooler *and* an oil/air cooler in series. Many of us are wishing it was such a simple fix, for some it will be. Others will need both coolant side and oil cooling upgrades.</p><p></p><p> I still don't get why you've recommended the 10W-40 in the past to anybody even doing one track day. I've seen a handful of Boss guys say they're running the 10W-40 after reading your threads and were planning on doing from one to a few track days. Since I haven't seen a UOA from a Boss using 10W-40 and *any* track miles I've been a little concerned for those guys. </p><p></p><p> That sounds just a wee bit wrong too. The Boss and Coyote only share a handful of parts depending on the year of Coyote. IIRC, just the bearings, rod bolts and maybe a couple other things. While almost everything will cross-bolt between the two, they are more different than alike.</p></blockquote><p></p>
[QUOTE="Grant808, post: 14220878, member: 74892"] That doesn't make any sense at all. I understand in your data that the MC shears rapidly. Are you saying if you change the MC 5w50 per the manual for track use that HT/HS doesn't matter? Er...not sure where you're getting that data, but pretty sure that's not quite right either. The specific heat of oil is not different with different viscosities. Perhaps you mean to say they generate less heat? And are you saying that less viscous lubricants have a higher average viscosity in extreme conditions? Is that a typo? Funny you mention the oil to air cooler...one of the Bosses I was talking about did just that. Ditched the stock oil/coolant setup for a huge oil/air. 270ish pan temps in 85* ambient. Roadrunners make a LOT of heat on the top end. It's all in the RPM. So far the only setups that seem to easily take extreme heat (IMO, 85F+) use both the stock cooler *and* an oil/air cooler in series. Many of us are wishing it was such a simple fix, for some it will be. Others will need both coolant side and oil cooling upgrades. I still don't get why you've recommended the 10W-40 in the past to anybody even doing one track day. I've seen a handful of Boss guys say they're running the 10W-40 after reading your threads and were planning on doing from one to a few track days. Since I haven't seen a UOA from a Boss using 10W-40 and *any* track miles I've been a little concerned for those guys. That sounds just a wee bit wrong too. The Boss and Coyote only share a handful of parts depending on the year of Coyote. IIRC, just the bearings, rod bolts and maybe a couple other things. While almost everything will cross-bolt between the two, they are more different than alike. [/QUOTE]
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2012-2013 Boss 302 Mustang
Something to consider when the oil change topic happens here
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