5w30 vs. Penz. 10w-30 syth.

Messages
4
Location
mich
Have a question here,they recommend 5w-30 for my truck and been using Mobil,I was in Wally world and they had Penzoil 10w-30 Synt. oil for 18.88 for a 5 gal.Thinking about switching over and extending my oil change to 8000 miles and a filter change at 4000.Plus was thinking about sending my oil in to get it checked out for. A guy here has Shaffers on hand.Like to hear your opinions about it. Thanks jake
 
Messages
22,188
Location
Colorado Springs
The pennzoil synthetic will not have the extended drain capability that Mobil 1 does, so you better sample at around 4,000-5,000 and see where you need to go from there.
 
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