 Brad Penn 10-30 vs 20-50, Weight vs Temperature |
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| 1988Hawk |
 Jun 1 2014, 04:09 PM
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#1
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Newbie  Group: Members Posts: 41 Joined: 17-April 08 From: Chicago Member No.: 8,929 Region Association: None  |
On a 88 degree day in Chicago I have tested two oil weights and have gotten the following results:
1. Brad Penn 10-30W, with peak running temp 205 degrees. 2. Brad Penn 20-50W, with peak running temp 225 degrees. Both exhibited acceptable pressure, so the question is which one would you select for summer driving??? |
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| 1988Hawk |
Jun 1 2014, 06:46 PM
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#2
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Newbie Group: Members Posts: 41 Joined: 17-April 08 From: Chicago Member No.: 8,929 Region Association: None |
My own theory is that the lighter weighted oil dissipates heat more effectively. I have seen this in past years when switching oil, when I first used BP 20-50 there was a noticeable increase in temps. |
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| Bartlett 914 |
Jun 2 2014, 12:16 PM
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#3
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Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
QUOTE(1988Hawk @ Jun 1 2014, 07:46 PM)  My own theory is that the lighter weighted oil dissipates heat more effectively. I have seen this in past years when switching oil, when I first used BP 20-50 there was a noticeable increase in temps. I had similar a experience. I also suspected that the thicker oil did not dissipate the heat fast enough. Which cools faster. Molasses or Water. |
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Posts in this topic
1988Hawk Brad Penn 10-30 vs 20-50 Jun 1 2014, 04:09 PM
Bruce Hinds The thicker oil ran hotter? Jun 1 2014, 05:10 PM
1988Hawk
The thicker oil ran hotter?
Correct. Jun 1 2014, 05:11 PM damesandhotrods Thicker oil is harder to pump, costs horse power t... Jun 1 2014, 05:18 PM struckn Not sure this is an answer but find it interestin... Jun 1 2014, 06:21 PM Mark Henry I will never join the thick oil mindset.
...BTW I... Jun 2 2014, 11:37 AM mskala Brad Penn can also be had in 15W-40. Jun 2 2014, 11:44 AM scott_in_nh
On a 88 degree day in Chicago I have tested two o... Jun 2 2014, 12:19 PM Jake Raby It all bolus down to the internal clearances of th... Jun 2 2014, 12:20 PM Elliot Cannon I've used Mobil 1 15W50 since my engine was b... Jun 2 2014, 12:45 PM scott_in_nh Obviously I have no basis for a discussion with Ja... Jun 2 2014, 01:11 PM Jake Raby
Exactly. I have carried out years worth of develo... Jun 2 2014, 10:08 PM scott_in_nh
We use Centistoke to measure viscosity as well. ... Jun 3 2014, 07:49 AM |
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