Better to stay all dino, or all synthetic, or to use one of the blends, or just throw in a quart on synthetic with your dino?
I agree! Why mess around with a tested formula , when we are working with such limited and possibly unreliable data?quote:
Originally posted by mojo:
I think that mixing oil brands be they synthetic or mineral based is something that should only be done if you have no other recourse. If you consider all the testing, both in the laboratory and in the field, that additive and oil companies do before marketing a finished oil, you might realize that there is something called base stock reponse that can affect how well individual additives will perform. If you mix because you are trying to improve the overall quality, its somewhat akin to playing Russian Roulette as the wrong combination can do you in. It may not be a sudden failure, but can be like a chronic problem that gets worse with time.
The problem is that you can mix two oils and visually see no sediment or precipitation forming which can give the illusion that all is well. However, it you were to subject the blend to some type of functional compatibility test or engine test, you might be surprised at what happens. Different blends of oils use different additive components that have been selected to collectively make that formulation meet the required API or ILSAC ratings. When you mix, you change the baseline and anything might happen.
just another perspective:quote:
Originally posted by Al:
It makes no sense-thats why I do it. Seriously though, I think there are benefits. I believe RedLine is the perfect oil to mix. One quart will add serious moly and Esters. I keep hoping we will se some analysis on this brew.
True, but I think it would be pretty hard to come up with a mix (using decent oils) that really was bad for your engine in the sense of having a signifiant detrimental effect, even running that mix the life of the engine. And I think the esters in a quart of Redline would likely do more good for the engine than the potential bad side effects of the mix.quote:
Originally posted by mf150:
Although Red Line is compatible with other oils, the chemistry is altered when mixed with other oils/additives. There is no way to tell that mixing is better for your engine or worse.
Probably not. I ran Maxlife 10w40 last winter.quote:
Originally posted by haley10:
I doubt All Climate is going to fail you in a climate like Detroit.
Dunno, unless it is some other aspect of the blends that helps cold properties.quote:
I think this boosting cold start is hoodoo.
No need, but I will try the free Valvoline full synthetic in wife's Aerostar next winter.quote:
If you have the temp that requires it, run a full syn.
If priced cheaper I might. Got some NAPA full synthetic for 2.69 a quart. Probably similar to Valvoline Synpower.quote:
Why if you are into Valvoline, not just run Synpowwer to begin with??
Synthetic Blends are formulated in their own right. They are not formulated this way.quote:
Originally posted by edvanp:
I think it's better to mix or make one's own sem-synthetic. I'll add a quart of M1 Syn. to 4 quarts of Dino. Not sure what I get when/if I bought Semi-Syn. this way, I know for sure.