|
In case you've never seen a comparison of the Benefits of synthetics over their petroleum counterparts: |
|
Features |
Synthetic |
Petroleum |
1 |
Molecular Structure |
Saturated (sealed) |
Unsaturated (pourous) |
2 |
Film Strength |
up to 4200 psi |
300 to 500 psi |
3 |
Coefficient of Friction |
Very low w/ saturated Molecules |
High w/ unsaturated Molecules |
4 |
Heat Transferability |
Very High |
Minimal |
5 |
Viscosity Index |
Very High |
Quite Low |
6 |
Oxidation |
Slow to nil |
Fairly Rapid |
7 |
Acid Neutralization |
Very effective W High TBN |
Little to barely adequate |
8 |
Drain Interval |
15,000 to 35,000 Miles+ |
3000 to 5000 miles |
9 |
Volatility
(Tendency to vaporize) |
4 to 6% |
up to 28% |
10 |
Detergent & Dispersansy |
Very High by inherent Nature |
Minimal (needs additives) |
11 |
Reaction to Heat |
Gravitates toward hot metal to remove the heat |
Runs away from hot metal like cooking oil |
12 |
Reaction to Moisture |
Sheathes away from metal |
Little protection |
13 |
Reaction to Metal |
Clings tenuously |
Runs off |
14 |
Seal Compatibility |
Softens and swells slightly to close tolerances |
Hardens and degrades seals |
| |
The functions of an engine lubricant are to PROTECT ( #3, 4 & 8 ), COOL (#4, 5 & 12 ), Seal (#1& 2) amd to clean (#8 & 11) |
| |
Which does the best job today; the old fashoned petroleum or today's 100% Synthetics? |
| |
YOU BE THE JUDGE!!! |
