From what I can tell by reading some articles I found by googling "Is Quaker State a good oil?" Quaker State has mixed reviews and seems to be an average run of the mill product.I would look at the synthetic blend called Defy. The price on that oil seems to be pretty good, and it is a high mileage oil. So I would go for it. This is just my opinion based on my limited knowledge and what I could find from others comments.
A Texbook conventional oil. API certified, use with utmost confidence. In their 2011 assessment at PQIA
the PYB had high moly moderate boron whereas the QSGB had moderate moly and high boron - otherwise they were nearly indistinguishable. The Formulation likely has evolved since.
A very good product for good prices. The green bottle is a great price and the full synthetic is a deal at $21.97 at wally world.. I like Havoline and its priced in the same neighborhood or even just a bit cheaper.
Originally Posted By: vickeryaj
I would look at the synthetic blend called Defy. The price on that oil seems to be pretty good, and it is a high mileage oil. So I would go for it. This is just my opinion based on my limited knowledge and what I could find from others comments.
Did the OP say what year his Jeep vehicle is? Defy is an SL rated oil, which means it should not be used in cars built after 2004.