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Originally Posted By: ZeeOSix Originally Posted By: Polarisdude94 The CarQuest filter was only about $8 and the Fram is almost twice that, that's why I was wondering if it really worth the extra money. Ultras at Walmart are ~$9. I looked on their website and it was $13 for my truck.

So I used to use CarQuest premium filters in all of my cars because they were Wix filters. But I know a manager at CarQuest and he said that they are no longer going to be made by eix anymore so I am looking for a new filter. My truck now is a 2015 Silverado. Is the Fram Ultra really worth the...

Thanks for all the replies!

Originally Posted By: demarpaint My vote goes to the 4 psi of air going to the tires. That's what I was guessing too, but if it was the oil it makes me wonder.

Just changed the Castrol Edge 0w-20 in my truck with about 7,000 miles on it and replaced it with the same. I rotated the tires and filled them up too, they were all about 4 psi low. After driving on the new oil for a few days, my mpg already went up 1 mpg, which isn't much. But I was just...

Originally Posted By: BikeWhisperer Amazon has competitive prices to Wally World and if you're a Prime Member you get free 2 day shipping. I did look on Amazon, how does the price match work for amazon?!

I can no longer find Castrol Edge EP in a 0w-20 at my local Walmart. Has anyone been finding it or PUP in the same weight anywhere?

2015 Silverado 1500 5.3 Out: FF 0W-20 with 4,000 miles In: Castrol Edge 0W-20 and CarQuest premium filter (Wix)

Originally Posted By: tig1 I have used M1 oils for 37 years at 10K OCIs, and find today's M1 is equal to or better than any formulation of the past. Tig, from reading what I've seen you post here before you seem like you're a really knowledgeable person in general and when it comes to Mobil 1...

The truck is a GMC Canyon with the 3.5 I5 engine. I may end up sticking with SynPower after hearing you guys say its good stuff!

Just recently got a new truck and the PO ran valvoline in it, was thinking about sticking with it or running QSUD. I used to like Mobil 1 a lot, but I've heard recently that it isn't as good as it used to be, due to a change in the formulation? Any truth to this? Also what is the difference...

That was my initial thought as well, with the oil filter. But he said he put in the full 6 quarts it calls for. And he said he usually used about a half quart to a quart for a 4000-5000 OCI.

I know some manufacturers said that it was normal, but to me that was sort of to cover themselves. Good to know though!

So today I was talking to my sisters boyfriend about oil being consumed during an OCI. I have always thought that an engine shouldn't consume any oil if it was running properly? But he seemed to think that the oil breaking down would lead the engine to somehow consume it, not burning oil either...

Originally Posted By: Nick1994 I maintain my grandmother's 02' Trailblazer. I've usually run Castrol GTX in it and it seems quite happy with it. It did consume a quart of Chevron Supreme HM on the previous oil change. In the past I've used Wix filters with no issues but currently have a Fram...

Originally Posted By: Bud_One Any API SN conventional oil will do fine - synthetic won't hurt - key thing is keeping with the 5w30 viscosity - co worker thought he'd be smart and try and run 20w50 in his - check engine light came on a few days later - apparently the variable cam phaser is not...

Originally Posted By: daves87rs They are a lot like the GM 4.3, they will pretty much run on anything. That said, Maxlife will be fine... Thanks! Funny you say that, I'm currently driving a blazer with the 4.3 Lol.

Hello all, new here but I've browsed the site for a while now and love it! I'm gonna be most likely buying a trailblazer with 150,000 miles on it. What are good oils for the GM inline 6 engine. I'm mainly trying to decide if I should run a high mileage oil like Maxlife or if I should run a...