Originally Posted By: lexus114
it`s funny you brought this up! I was just reading (on another source) re;this blended oil. They claim your better off mixing it your self due to their not being much Synthetic oil in the blends.
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Originally Posted By: rudolphna
I wouldn't mix. They are two different oils, if you mix them the add packs might interfere with one another. Most blends are 20/30% syn and the rest conventional, and that is plenty to get the excellent cold flow properties of synthetic.
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Originally Posted By: SecondMonkey
Originally Posted By: Hethaerto
Blends give you the best properties of both oil types. Don't ask me what those dino properties are.
I seriously doubt there is a single shred of evidence to prove this.
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Originally Posted By: Captain_Klink
i mix them all the time. even put in 20% 5w20 to thin out the 5w30 a bit, help the flow properties. even mix different brands. no problems.
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I've been mixing over 30 years and never and issue. Many hundreds of thousands of miles on vehicles. If I think about it, well over a million miles total. I don't just go out and change the oil/filter and mix them all together. I did this when I was young and when I had little money(I'd use anything!). Most of the time my OCI's are with the same brand, grade etc. Often today, due to having such a variety of brands, dino/syn due to sales, rebates/FAR, closeouts and BITOG - "Product, Rebate, Sales" section, I often end up with orphan qts just like many members here. OR! Due to having sooooo many qts of different brands, I like to give my vehicles a consistant mix. I do prefer to blend my own syn and dino and I don't think that most of the OTC syn/blend oils are as high as 20%-30%. Maybe a few but, who knows?
Im not trying to play scientist/oil engineer and Im not trying to out think the people that design these oil but, with 60-80 qts of oils on hand/stash, this is what I like to do. And I think that I have enough of my own evidence/experience to do so!
