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Synthetic Blend

Why the big deal about synthetic blend?

Synthetic Blend

Postby wschamp [OP] » Oct 07 2013, 4:15am

New 2014 LTZ (5.3) Owner's manual and dealership is telling me synthetic blend (0-20W) is the required oil. 8.5 quarts at that. First off I'm finding it difficult in finding the blended oil that I'm being told to use. What is the big deal about the blend vs full Synthetic?
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Related Topics  Full synthetic vs. synthetic blend   Oil Change to Synthetic   Switching to Synthetic oil?   mixing conventional and synthetic?   Synthetic Oil Myths Debunked.   Oil/Valvoline Full Synthetic   Quaker State Full Synthetic (Dexos 1)   Mobil 1 advanced synthetic motor oil 
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Re: Synthetic Blend

Postby jimnfor » Oct 07 2013, 2:02pm

Maybe it's stating synthetic blend is the minimal you can use?!?! Full synthetic would be fine.
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Re: Synthetic Blend

Postby wildchevy » Oct 07 2013, 2:08pm

Your looking for a Dexos certified oil.
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Re: Synthetic Blend

Postby gmcultr » Oct 07 2013, 2:18pm

Dexos Certified or Equivalent.... oil companies have to pay for the dexos certification.... some brands refuse to pay but are still equal or even superior to dexos spec.

I have heard people saying blend is better for the break in period... and then they switch to full synthetic... but I can't vouch if there's any merit to their claims.

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Re: Synthetic Blend

Postby wildchevy » Oct 07 2013, 2:25pm

You actually have a lot of choices, you may have to have your parts store special order it for awhile. I would think that all these makers will have added 0W20 to the list shortly. I also bet someone will come alone and say that GM switching to 0W20 is just a conspiracy to milk the oil companies for more money for certifications. You have to remember who is running Government Motors.
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Re: Synthetic Blend

Postby fondupot » Oct 07 2013, 5:36pm

Amsoil has a Dexos certified 0W20 full synthetic.
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Re: Synthetic Blend

Postby Silvery13 » Oct 07 2013, 5:42pm

0W-20 for all season use?
I'm not a member of the "good old boy" clan and I don't drink their kool aid.
Because severely hydrocracked Group III oils have properties very similar to Group IV oils, they are also called synthetic.
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Re: Synthetic Blend

Postby wildchevy » Oct 07 2013, 5:45pm

yes all season use, ford has been doing it for years in search of that extra 1/2 MPG
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Re: Synthetic Blend

Postby Copperhead » Oct 07 2013, 6:07pm

Synthetic blend is not a bad thing, but it is made out to be more than it really is. Most syn blends are 25% or less actual synthetic. As much as conventionals are getting whacked around nowadays, there are some advantages to blends, in that they can carry different type of additive packages in suspension better than only synthetic. Each has its own strengths and weaknesses. Full synthetics can be a good thing, but only if cost is not in the stratosphere. There are some very respectable full synthetics out there that are very well priced, that will do an excellent job. I would go with one of them.

As for the break in thing. There is nothing wrong with going right away to a full synthetic. Many more engines today are even being factory filled with synthetic. In the last 10 years, I have owned 2 vehicles that came with synthetic out of the factory and the manuals even suggested using synthetics, one was a little Jeep Liberty diesel. My Silverado got full synthetic at 1190 miles. My commercial semi got full synthetic at the first oil change. That semi now has 170,000 miles on it, doesn't use any oil, gets over 20% better fuel mileage than the national average for commercial class 8 semi trucks, and has some very respectable oil sample results over it's life span.

So run a blend, run full synthetic, or whatever you choose, whenever you choose to do so. Run what helps you sleep well at night and enjoy life.

Ow20 is fine for all season. The actual weight of the oil is the same if it is 0w20 or 5w20. The number in front of the "w" is the winter flow rating. At operating temperature, the oil is a 20w. The viscosity chart parameters are the same..... approximately 8.8 at 100c whether it is a 0w20 or a 5w20. Side by side on a chart, at operating temperature, you cannot tell the difference. On cold startups is where the difference lies, and the 0w20 will get up to the top slightly quicker on a cold morning than a 5w20 will.

Some are leery of the 20w phenomenon going on with OEM's and engines. No need to worry. A lighter oil actually has some beneficial properties. One of oils primary functions is cooling. A thinner oil will dissipate heat faster than a thicker oil. With the close tolerances in today's engines, a thinner oil will make it into tighter areas better. And a light oil, depending on type and brand, will shear less than a thicker oil. Not a bad thing all the way around. I know it feels like you are only running water in the oil pan, but not to worry.
Last edited by Copperhead on Oct 07 2013, 6:18pm, edited 1 time in total.
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Re: Synthetic Blend

Postby retg » Oct 07 2013, 6:16pm

They call it a "synthetic blend" but you could also call it a "Dyno blend." :mrgreen:
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