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01-20-2013, 01:30 PM #1
Does anyone use Quaker State Full synthetic oil?
There is a big box hardware type store that has the Quaker State "Enhanced Durability" Synthetic oil on sale for $4.00 a quart. Has or does anyone use quaker state? I have only used mobile 1, Royal Purple, and Fuchs brand oil. Should I steer clear of it?
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01-20-2013, 03:50 PM #2
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- Jan 2009
- Norwalk, Ohio
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I won't say don't use it, but I will just tell you two cases of what I've seen. My dad had a 70 road runner 440 6 pack, always ran Quaker State oil in from new. Well when the car had about 48,000 miles he did a complete rebuild on it, he pulled out handfulls of sludge out of the engine. He never used it again.
Someone on an HHR forum I'm on also complained about excessive sludge in the ecotec engine, pictures looked just like my dads old car. They said that Quaker State has Parafin Wax in it, I don't know if that's true though.
01-20-2013, 04:08 PM #3
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- Oct 2010
- Cobourg, Ontario, Canada
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I don't use Quaker State anymore due to sludge found on Oil Filler cap
in an old car, years ago. It was not synthetic, and was about 10 years ago.
It never caused problems, but I do know it was the only oil I used that did
this of : Pennzoil, Mobil One, Castrol. Now, I use many different cheap brands
for the other 4 cars I change the oil on. Our new Crew gets Bulk GM oil
at the Dealership evrey 3 months whether it needs it or not. BrianSilverado Crew.....4.8 L
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01-21-2013, 01:23 AM #4
I have decided not to buy it. I have a few gallons of Fuchs 5-30 in the garage. GM is now using that instead of royal purple or mobile 1 for engine testing. They also put it in all the executive cars when they do oil changes at the tech center. I have heard of the paraffin wax thing in the past. I have never used Quaker state and now I will not due to the sludge reports that you guys mentioned.
02-17-2013, 06:56 PM #5
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- Feb 2009
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QS is not a very good oil at all.2008 GMC Sierra 2500HD Ex. Cab, Fire Red, 6.6L Duramax LMM Equipped with UTG Rocker Pods
AMSOIL is the only oil company that...,"Recommends 25,000 mile oil changes","Gives up to four times better wear protection","Warranties your engine against oil related failure"
02-26-2013, 08:03 AM #6
Umm, Quaker State is part of SOPUS, which also has Shell and Pennzoil Brands (among others)...Really?
The whole argument about sludging was from years ago when they used Pennsylvania crude almost exclusively. Pennsylvania crude has a very high paraffin wax content, both Pennzoil and Quaker State suffered sludging because of this; Pennzoil offset the issue with massive amounts of detergents IIRC. The wax issue has been remedied by a dewaxing process during the refining.
I would not hesitate to run any oil with "dexos" on the label as that is a pretty rigorous standard, and I want to remember it has a sludging component.
02-17-2013, 08:08 PM #7
Sludge reports were based on conventional oils (not synthetic). The Quaker State synthetic is in fact a superior (to conventional) product. That being said, nothing wrong with going with something with a little more trust, either!
Me, I've used it in the past, but found I just prefer to buy Mobil 1 on sale. I get it at less than $5/quart if I watch...
-Skippy2006 Vortec Max 1500
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02-23-2013, 06:39 PM #8
On the latest Dexos list just updated Quaker State Ultimate Durabilty is listed. As well as their blend product. So it's as good (as far as GM is concerned) as anything else mainstream. Mobil One, etc.
09-04-2013, 08:39 PM #9
Hell no! You couldn't pay me to run penzoil/quakerstate brand anything in my vehicles!Chuckie!!!
09-14-2013, 05:31 PM #10
While I agree that most of the major brands are pretty good, I have grown partial to Schaeffer oils. I like them in my business stuff, and they make a very good 5w30 full synthetic, that may not be on the dexos list, but it fully dexos compliant. Schaeffer has been making oils longer than anyone else in America.... since 1839. Their product line dwarfs just about everyone else. They primarily cater to trucking, ag, and construction type of stuff which is why most people have never heard of them. But they make stellar products that are about as good as it gets. And the prices are not bad. I buy in bulk quantities, so I get it for less than by the quart pricing. But they will sell cases of quarts to anyone. Just go on www.schaefferoil.com and you can read about their products and technical stuff and find a rep or retail location near you.2013 Silverado 1500 4x4 Crew. 5.3L Auto. Range AFM Delete, PCV Catch Can, RC Leveling kit.
2013 Freightliner Columbia. pre-EGR Detroit 12.7L 500 hp 1850 lb torque, 18 speed.
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