01-10-2012, 11:48 PM
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#2 (permalink)
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A True Z Fanatic
Join Date: Feb 2009
Location: FL
Posts: 4,776
Drives: Baby Shark
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Quote:
Originally Posted by martin82
I am thinking to change to 10w30 since I will be tracking the car once a month thoughts?
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the first # is viscosity when cold, the second, viscosity when hot. I run Mobil 1 0w 40. True synthetic, unlike their other off the shelf oils and will handle the higher oil temps better.
I wouldn't go higher than a 40 weight oil in a street car tho. If it's a track only beast, then perhaps a 50 weight.
Another good true synthetic that is easy to find is German Castrol 0w 30. Very good oil and UOAs on both the ones I mentioned seem to be very favorable.
Also Redline makes good stuff as well.
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