Semi-synthetic and blends

[mjoekingz28]

Is this the same (or an interchangable) meaning?


Are there any differences between a synthetic blend and a semi-synthetic motor oil?

 

[zach1900]

Oh God, get this man a thesaurus.

 

[bigt61]

Same thing IMO.

 

[pbm]

Originally Posted By: bigt61
Same thing IMO.


+1

 

[Branson304]

They are the same thing.

 

[SR5]

Valvoline DuraBlend is called Semi-Synthetic.
Valvoline Engine Armour is called a Synthetic Blend.

The Durablend costs a bit more, and appears higher up the list, which starts at SynPower and ends at the mineral oils.

They both carry the same specs in the same weight I looked at (10W40).
Both API SN, ACEA A3/B4, MB 229.1

This may only be a valvoline thing.

 

[Eddie]

I'm not sure they equal the same since the name Synthetic is been dumbed down to include group 3 oils. If a semi syn is gp 3 oils and a blend is gp4 and dino, then they are not the same. )

 

[donnyj08]

Almost every oil is a "blend" of sorts. Semi synthetic and synthetic blend are essentially the same thing using a different word.

 

[HerrStig]

Originally Posted By: Eddie
I'm not sure they equal the same since the name Synthetic is been dumbed down to include group 3 oils. If a semi syn is gp 3 oils and a blend is gp4 and dino, then they are not the same. )
Huh?

 

[CT8]

But a Semi synthetic blend with nano particles and the official oil of NASCAR says buy me.

 

[TiredTrucker]

Even many full synthetics are a Group IV / Group III blend. A 5w30 I use is and declares it as such in their data sheets on the product. Doesn't bother me in the least. I also use a 10w30 oil in a couple of applications that is a Group II+ and Group IV blend. Very satisfied with it. I have long since gotten past any bias about blends in just about any formulation. I concentrate mostly on add pack properties nowadays.

 

[BrocLuno]

I'm in the same camp as TT above. I think high quality blends are very good, and do well using the properties of all the stocks included.

There is no such thing as a pure oil (like say a transformer oil...) for internal combustion engine use. It's has to be a blend of something to get the additive packages into it...

Saying blend on the bottle seems to be truthful advertising