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1988Hawk |
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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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scott_in_nh |
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#2
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Senior Member ![]() ![]() ![]() Group: Members Posts: 808 Joined: 10-December 10 From: Hampton, NH Member No.: 12,471 Region Association: North East States ![]() |
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??? I tried both and noticed the same thing the first summer I had my car. I've been using the BP 10w-30 in NH for about 20,000 miles over 3 years, including AX, with no issues. Likely a combination of the thermal properties of the oil and reduced flow through the oil cooler - a fluid of the same density but a higher viscosity will have less flow at the same pressure. |
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