Can you blend synthetic and "real" oil

[ray66v]

Most engines today, are not manufactured to need to be broke in with a specific breaking oil.

If an engine does require a breaking oil, they will specifically say what to use, and how long the break in interval is, in the manual. If it doesn't, you can use what ever you like.

The lubricity of most dino oils, vs. synthetic oils are no longer much different, at normal operating temperatures. So, it will not matter much which one you use. The difference becomes apparent, if you are talking about extreme temperatures, or desire to extend change intervals. In those cases, synthetic clearly has the edge.

And as stated, you can mix them if you need to.

 

[RichardM]

I have read where real oil is now 25% synthetic to meet the newer rating.

Some comanies have been blending with synthetics (as previously mentioned) but with requirements getting tougher, it's easir to meet requirements with some synthetic base oils blended with conventional base stocks. I don't know what percent now contain synthetic, but you can bet it will continue to increase. It's interesting that the first viable synthetic base oils were developed back in the 1930's and '40's by Germany.

 

[crashz]

Even conventional base stocks are now so highly refined that they are almost considered as good as synthetics. Its funny, there are a lot of things that people wish were made like the "old days", but not engine oil! Each year that passes give better and better oils on the market.

 

[Gale Hawkins]

Even conventional base stocks are now so highly refined that they are almost considered as good as synthetics. Its funny, there are a lot of things that people wish were made like the "old days", but not engine oil! Each year that passes give better and better oils on the market.

So true. As a kid I remember old road side signs promoting a brand good for 1000 miles and still it was hard to get 100,000 miles out of an engine. Metals have advanced as much as oils I think too,.

 

[Soundguy]

everything has.

look at half mil mile engines....

 

[Z71]

My truck came with synthetic from the factory.

Curious, what kind of truck came with synthetic oil?

 

[murphy1244]

Curious, what kind of truck came with synthetic oil?

Ford uses Mobil 1

 

[Z71]

I find no reference that says Mobil 1 is used in Ford Trucks, please state year make and model.

 

[Soundguy]

our 05 int dump truck came with syn all around.. gear case and all. that count?

 

[Car Doc]

When Conoco bought Phillips 66 for one instance Trop Artic became a synthetic blend so I would say yes a person can mix the 2 based on that alone. But there is more to it than I make it out to be I am sure.