SynBlend vs FullSyn

[SnowBuck]

2005 YukonXL. Always used FULL Synthetic. Last garage did an oil change with Synthetic Blend!!!
Should I go and get another oil change???

 

[Scottydoggs]

id let it go till its next change.

 

[OR VietVet]

Typically you hear about synblend oils for higher mileage engines. You will likely be just fine till next oil change. Do you not specify what oil and filter you want when you have someone else do your oil change?

 

[B-train]

Let er rip tater chip.....not gonna hurt a thing. Just don't run it as long as you would full synthetic

 

[MassHoe04]

This used to spark all kinds of heated debates among members of the Jeep forums!

I have seen a few mentions of engines that never leaked (RMS, etc.) after having used regular oil from dinosaurs, all of a sudden leaking like crazy after switching to full synthetic.

Maybe the part of the blend that is dino-based will leave a few more deposits?
Maybe it won't hold up quite as long under extreme heat?

I swore that it may be 200k miles of deposits from regular oil, that was keeping it from leaking out on my Jeep. I had no leaks and did not want to switch to synthetic, out of fear that synthetic oil would clean out all those deposits that were keeping oil inside.

Maybe... Maybe not.

But your blend should be just fine for the next 3k miles or more.

This is the first vehicle I have had since 1983, to be running on full-synthetic 5W-30.
Everything else had been on regular 10W-30 or 10W-40.

It might be matter at all on my 04 Tahoe what is in there. But at 206k miles and no puddles in my driveway... I am sticking with the full synthetic that has always been in there with a PO, who seems to have taken good care of the engine. For those reason, I am not going to upset the apple cart by changing to blends or regular oil.

I look for NAPA, Walmart or Costco for sales on Pennzoil, Castrol, Mobil 1, Quaker State 5 qt. jugs. They are usually close the same price as regular or blends when the sales run.

 

[RAMurphy]

You will be fine, don’t sweat it.

 

[Blackcar]

In owner's manual on 2017 Yukon 0-w20 and 2013 5-w30 it states to use synthetic blend oil now on 1996 corvette says to use Mobile 1 synthetic.

 

[MassHoe04]

DISCLAIMER: The information below is purely for entertainment purposes only! The following statements are not presented as the views or opinions of the forum, its members... or me, for that matter.



I am not saying this is GM or any other specific company, but I am sure you have all seen things like this in various product user manuals:

Sometimes, it seems like companies specify a particular product type (sometimes specific product lines within specific brands) if a company or industry "recommends" something as being better over everything else.
Sometimes those recommendations from the partnered corporation or industry group is profit-driven.

Sometimes you'll see something like "X Company recommends use of so-and-so's super-duper whatever for maximum longevity of your thing... Use only blobbity-blah to prevent total destruction or serious injury."

I am not a conspiracy theorist... I just wonder if whatever gets specifically recommended has some reason other than engineering and science behind them.

 

[Mudsport96]

Run whatever is api certified and you will be fine.

 

[B-train]

Hilarious . Love the blurb about maximum longevity for your thing.....