Here in the AZ we change our oil to 10W30, the extreme heat and non-existant cold temps make 5W30 less desirable.
Every shop changes to 10W30 unless you ask for different. I changed to 10W30 Mobil1 at 6500 miles and every 7500 since...
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All your trail are belong to us
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-Xavier
Small hands in third world countries make quality products.