Synthetic vs Mineral Oil in my Tacoma

[kenmac]

Have always used synthetic in my 07 tundra, scion, cummins, kubota, and now, my McCormick
Slicker oil is better oil

 

[Copperhead]

Actually, Group III "faux" synthetic has more lubricity than Group IV PAO "true" synthetic. Even then, the best oils will also have an add pack that contains molybdenum in conjunction with boron, which is a very strong anti-friction package.

 

[kenmac]

Actually, Group III "faux" synthetic has more lubricity than Group IV PAO "true" synthetic.

I haven't seen that to be the case at all

 

[Copperhead]

I haven't seen that to be the case at all

The folks over at Machinery Lubrication, a industry recognized publication, can help here.

This first article directly compares Group III mineral "faux" synthetic with Group IV PAO "true" synthetic....

Performance of Base Oils and Future Trends - The Evolution of Base Oil Technology - Part 3

From that first article.....

A modern Group III oil can actually outperform a PAO in several areas important to lubricants, such as additive solubility, lubricity and antiwear performance. Group III base oils can now rival PAO stocks in pour point, viscosity index and oxidation stability performance.

Polyalphaolefin (PAO) Lubricants Explained

And excerpt from the second article........

Lower natural lubricity than mineral oil
Polyalphaolefin base oil not necessarily less wear than mineral base oil (additive-dependent property)
Compatible with mineral oil
Problems very non-polar (low natural solvency, additive solubility, lower lubricity and film strength)
Forms hard deposits in reciprocating compressors
Must blend in 5 to 20 percent ester base oil for seal swell, additive solubility and lubricity
Not biodegradable
Costs four times more than mineral oil, less than other synthetics

There are some advantages to a PAO. It isn't that Group III exceeds it in every category. Especially thermal resistance. Hence, most of the motor oil I use is a combo of 75% Group III and 25% Group IV.

 

[two_bit_score]

well do as you please. I'm not running any vehicle I own 15K on a standard 10w30 motor oil of any brand
I ran a Exxon 10w 30 standard oil once at 5k. and according to UAO. it should have been changed at 35K
This was back a few yrs before the direct injected vehicles.

Many years ago. I worked at a full service station. There was a old guy that use to come in and bring his own oil and filter when he wanted an oil change.
He would only replace the oil filter ever other oil change. As I know of, he never had a major engine repair.
I would never do this, but it seemed to work for him

What kind of oil and filter was he bringing in? Same every time?

 

[kenmac]

What kind of oil and filter was he bringing in? Same every time?

I really don't remember the brand.
I doubt it was the same filter every time as he was cheap.
Most likely the cheapest oil and filter he could find on sale at that time

 

[kenmac]

The folks over at Machinery Lubrication, a industry recognized publication, can help here.

This first article directly compares Group III mineral "faux" synthetic with Group IV PAO "true" synthetic....

Performance of Base Oils and Future Trends - The Evolution of Base Oil Technology - Part 3

From that first article.....

A modern Group III oil can actually outperform a PAO in several areas important to lubricants, such as additive solubility, lubricity and antiwear performance. Group III base oils can now rival PAO stocks in pour point, viscosity index and oxidation stability performance.

Polyalphaolefin (PAO) Lubricants Explained

And excerpt from the second article........

Lower natural lubricity than mineral oil
Polyalphaolefin base oil not necessarily less wear than mineral base oil (additive-dependent property)
Compatible with mineral oil
Problems very non-polar (low natural solvency, additive solubility, lower lubricity and film strength)
Forms hard deposits in reciprocating compressors
Must blend in 5 to 20 percent ester base oil for seal swell, additive solubility and lubricity
Not biodegradable
Costs four times more than mineral oil, less than other synthetics

There are some advantages to a PAO. It isn't that Group III exceeds it in every category. Especially thermal resistance. Hence, most of the motor oil I use is a combo of 75% Group III and 25% Group IV.

I'll take my UOA over heresay evidence as to which has more lubricity

 

[drkbrent]

The folks over at Machinery Lubrication, a industry recognized publication, can help here.

This first article directly compares Group III mineral "faux" synthetic with Group IV PAO "true" synthetic....

Performance of Base Oils and Future Trends - The Evolution of Base Oil Technology - Part 3

From that first article.....

A modern Group III oil can actually outperform a PAO in several areas important to lubricants, such as additive solubility, lubricity and antiwear performance. Group III base oils can now rival PAO stocks in pour point, viscosity index and oxidation stability performance.

Polyalphaolefin (PAO) Lubricants Explained

And excerpt from the second article........

Lower natural lubricity than mineral oil
Polyalphaolefin base oil not necessarily less wear than mineral base oil (additive-dependent property)
Compatible with mineral oil
Problems very non-polar (low natural solvency, additive solubility, lower lubricity and film strength)
Forms hard deposits in reciprocating compressors
Must blend in 5 to 20 percent ester base oil for seal swell, additive solubility and lubricity
Not biodegradable
Costs four times more than mineral oil, less than other synthetics

There are some advantages to a PAO. It isn't that Group III exceeds it in every category. Especially thermal resistance. Hence, most of the motor oil I use is a combo of 75% Group III and 25% Group IV.

You and I believe along the same lines. Lubrication Engineers (Industrial Lubricants | Asset Reliability Solutions | Lubrication Engineers), Texas Refinery Corp (https://www.texasrefinery.com/) and SWEPCO (Products Overview | Southwestern Petroleum Corporation) are three of the finest oil companies I know of. All three have flagship engine oils that are all semi-synthetic! The application should determine the product used. Synthetics simply aren稚 the 澱est for every application. I believe marketing plays a massive role in the perception causing some to believe synthetics are always 鍍he best. Check out the specs of this TRC engine oil...a TBN of 15!!! https://www.texasrefinery.com/product-specs/moly-xl-pro-spec-iv-xp.pdf

 

[Gale Hawkins]

These days I tend to just use WalMart Full Synthetic for quality and price across the board. Most all motor oil today is functionally about the same if it meets the engine manual specs.

 

[goeduck]

These days I tend to just use WalMart Full Synthetic for quality and price across the board. Most all motor oil today is functionally about the same if it meets the engine manual specs.

I did not know Walmart had synthetic oil. I learned something.

For my and my wifes dialy drivers (cars) I take them to Walmart for oil changes. Mobil 1 (or Castrol//Penzoil) full synthetic (5 quarts), filter etc for around $50. Good value in my opinion. I wonder why they do not offer their own full syn oil? :confused3: