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Old 08-01-2010, 01:49 PM   #13 (permalink)
Zello370
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Join Date: Jan 2009
Location: Harker Hts, Texas
Posts: 26
Drives: Yellow 370
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hey guys i just put in pennzoil utltra too, and now seeing temps in 260-270 when driven hard, was doing 110 going to new branfels tx and temp hit 270, only change was oil, nissan dealer said it might not be formulated for hard driving with our valves. I'm going back to ester and just change every 2500-3000 (temps stayed under 220 even when driving hard.
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