I have been reading about base stocks and additive components and all kinds of stuff, and I know I don't have the understanding of all the chemistry and properties and formulas to blend things but a few people here might.
I was thinking of, for example, what the components of a synthetic oil with the following goal in mind would be, who manufactures them and what proportion the blend would be?
I'm not looking for some miracle elixir I was just thinking with a target, what would it take? I know there is much more testing and testing and testing involved, but I am curious what the starting point would be.
The goal for this oil is a "replacement" for most 20 weight and some 30 weight applications. The drain interval target would be 15,000 miles at the most in applications the manufacturer recommends 5,000 miles typically. Low wear, good drain intervals, some fuel economy improvement, cleanliness and seal compatibility. Price is less of a concern.
SAE grade: 0W-20
Kinematic viscosity at 100 degrees C: 9.0 (shears no lower than 8.5)
HT/HS viscosity: 2.7 (shears no lower than 2.6)
Pour point: -48 Celsius or better, -54 would be the point to stop pursuing gains there.
ZDDP level, or anti-wear additive equivalent to 1200 ppm. High phosphate retention type if possible to protect emissions control systems. Sulfated ash and volatility have to be kept to a reasonable level for this as well.
TBN or TBN retention to make it last to 15,000 miles.
Oxidation resistance to try to keep the oil from no higher than a high 30 weight after 15,000 miles.
Retail target price: $7 to $9 per quart if at all possible.
This oil would not be API approved, or maybe as an SL oil due to additive content, SM performance would be great but the API/GF-4 rating can be compromised in order to meet other goals. Low foam, low deposit, low volatility, etc.
The base would likely be PAO with ester for polarity and seal swell, and maybe alkylated napthalene for additive solubility. What kind of blend would it take to do this and in what proportion for this fictional oil? Could a group III+ base be used for the bulk and offer high performance while keeping the price down? The higher the viscosity index possible without VI improvers, especially if it improves the performance at lower oil temperatures significantly, the better.
Friction modifiers is another good one, what is out there? I assume this oil may end up loaded with the soluble type of moly (I can't remember, not molybdenum disulfide but the other kind.)
I keep looking around at all kinds of stuff and I think I understand the components and what they do, it's the proportion and logic behind the proportioning that trips me up.
I was thinking of, for example, what the components of a synthetic oil with the following goal in mind would be, who manufactures them and what proportion the blend would be?
I'm not looking for some miracle elixir I was just thinking with a target, what would it take? I know there is much more testing and testing and testing involved, but I am curious what the starting point would be.
The goal for this oil is a "replacement" for most 20 weight and some 30 weight applications. The drain interval target would be 15,000 miles at the most in applications the manufacturer recommends 5,000 miles typically. Low wear, good drain intervals, some fuel economy improvement, cleanliness and seal compatibility. Price is less of a concern.
SAE grade: 0W-20
Kinematic viscosity at 100 degrees C: 9.0 (shears no lower than 8.5)
HT/HS viscosity: 2.7 (shears no lower than 2.6)
Pour point: -48 Celsius or better, -54 would be the point to stop pursuing gains there.
ZDDP level, or anti-wear additive equivalent to 1200 ppm. High phosphate retention type if possible to protect emissions control systems. Sulfated ash and volatility have to be kept to a reasonable level for this as well.
TBN or TBN retention to make it last to 15,000 miles.
Oxidation resistance to try to keep the oil from no higher than a high 30 weight after 15,000 miles.
Retail target price: $7 to $9 per quart if at all possible.
This oil would not be API approved, or maybe as an SL oil due to additive content, SM performance would be great but the API/GF-4 rating can be compromised in order to meet other goals. Low foam, low deposit, low volatility, etc.
The base would likely be PAO with ester for polarity and seal swell, and maybe alkylated napthalene for additive solubility. What kind of blend would it take to do this and in what proportion for this fictional oil? Could a group III+ base be used for the bulk and offer high performance while keeping the price down? The higher the viscosity index possible without VI improvers, especially if it improves the performance at lower oil temperatures significantly, the better.
Friction modifiers is another good one, what is out there? I assume this oil may end up loaded with the soluble type of moly (I can't remember, not molybdenum disulfide but the other kind.)
I keep looking around at all kinds of stuff and I think I understand the components and what they do, it's the proportion and logic behind the proportioning that trips me up.
