I was on the Castrol Crew site the other day and noticed this article. I chuckled and thought to myself, it sounds like they are talking directly to some of us around here...lol.
FTR, I neither endorse nor refute these claims, merely present them for discussion. I personally mix and switch oil brands/types at will with no worries at all....but who knows, my anecdote has no scientific evidence behind it, but then again neither does this claim from Castrol...Does it?
"If you read or post on automotive forums, you will see many discussions on whether creating your own oil blends is a good idea, and like most every other topic in history, opinions vary. And for many dedicated do-it-yourselfers who change their own oil, the next step might be to blend your own conventional and full synthetic oil as well. However like we’ve always said, a self-made blend will not always meet the industry standards claimed for both of the respective mixed products and just isn’t worth the risk to your engine.
While many smart, dedicated and capable do-it-yourselfers swear by blending their own oil, you cannot discount the hours and resources that go into the development of our proprietary product blend. This includes the specific balance of advanced additives and base oils to maximize performance. We go to great lengths and conduct tons of research to ensure that our synthetic blend motor oils are the best performing products you can find. Our products also include proprietary engine oil additives that work hard to minimize the wear that harmful deposits can cause — and that’s a key difference between Castrol blends and the kind of formula someone blending their own might create.
There is typically nothing wrong with a bit of improvisation, but the care of your car is one place where you just don’t want to make any compromises. You can’t rule out the possibility that negative synergies between the two oils may happen — and there can be long-term effects that may not present themselves immediately. Castrol GTX SynBlend and Castrol SYNTEC Blend provide our customers’ engines with the best protection against deposits and wear, even under the most severe driving conditions."
http://www.castrolcrew.com/Lab/?a=12
FTR, I neither endorse nor refute these claims, merely present them for discussion. I personally mix and switch oil brands/types at will with no worries at all....but who knows, my anecdote has no scientific evidence behind it, but then again neither does this claim from Castrol...Does it?
"If you read or post on automotive forums, you will see many discussions on whether creating your own oil blends is a good idea, and like most every other topic in history, opinions vary. And for many dedicated do-it-yourselfers who change their own oil, the next step might be to blend your own conventional and full synthetic oil as well. However like we’ve always said, a self-made blend will not always meet the industry standards claimed for both of the respective mixed products and just isn’t worth the risk to your engine.
While many smart, dedicated and capable do-it-yourselfers swear by blending their own oil, you cannot discount the hours and resources that go into the development of our proprietary product blend. This includes the specific balance of advanced additives and base oils to maximize performance. We go to great lengths and conduct tons of research to ensure that our synthetic blend motor oils are the best performing products you can find. Our products also include proprietary engine oil additives that work hard to minimize the wear that harmful deposits can cause — and that’s a key difference between Castrol blends and the kind of formula someone blending their own might create.
There is typically nothing wrong with a bit of improvisation, but the care of your car is one place where you just don’t want to make any compromises. You can’t rule out the possibility that negative synergies between the two oils may happen — and there can be long-term effects that may not present themselves immediately. Castrol GTX SynBlend and Castrol SYNTEC Blend provide our customers’ engines with the best protection against deposits and wear, even under the most severe driving conditions."
http://www.castrolcrew.com/Lab/?a=12
