Synthetic oil vs Conventional oil
Oil lab Test Conclusion
This the conclusion of all these oils test .
SUMMARY
Thermal Breakdown BEGINS SOONER with Diesel oil, than with gas engine oils, which is not desirable for High Performance gas engine usage. And as you can see by looking at this short list of “high zinc” gas engine oils, or by looking at the complete ranking list below, there are many, many gas engine oils available that are FAR SUPERIOR to the best Diesel oils in terms of wear protection. Therefore, using Diesel oils in high performance gas engines is NOT the best choice, if you want superior wear protection with plenty of margin of safety (extra reserve wear protection above what the engine typically needs).
For those who have used Diesel oil in High Performance gas engines for years without issue, you were able to do that only because the wear protection required by the engines, never happened to exceed the oil’s capability. But, you were clearly running a MUCH LOWER margin of safety than you would have been, if you’d used a much more capable gas engine oil instead. So, if you've been using Diesel oil in High Performance gas engines, you may want to rethink what you've been doing and consider upgrading to one of the far better gas engine oils.
CONCLUSION
The bottom line is that the end user does NOT know more about motor oil than the Oil Companies' Chemical Engineers and Chemists. So, the BEST choice is to use only quality gas engine oil in High Performance gas engines. These oils offer MUCH HIGHER wear protection capability and can withstand somewhat higher temperatures before the onset of Thermal Breakdown. Leave the less capable Diesel oils for use only in Diesel engines, where they are meant to be used.
Thermal Breakdown BEGINS SOONER with Diesel oil, than with gas engine oils, which is not desirable for High Performance gas engine usage. And as you can see by looking at this short list of “high zinc” gas engine oils, or by looking at the complete ranking list below, there are many, many gas engine oils available that are FAR SUPERIOR to the best Diesel oils in terms of wear protection. Therefore, using Diesel oils in high performance gas engines is NOT the best choice, if you want superior wear protection with plenty of margin of safety (extra reserve wear protection above what the engine typically needs).
For those who have used Diesel oil in High Performance gas engines for years without issue, you were able to do that only because the wear protection required by the engines, never happened to exceed the oil’s capability. But, you were clearly running a MUCH LOWER margin of safety than you would have been, if you’d used a much more capable gas engine oil instead. So, if you've been using Diesel oil in High Performance gas engines, you may want to rethink what you've been doing and consider upgrading to one of the far better gas engine oils.
CONCLUSION
The bottom line is that the end user does NOT know more about motor oil than the Oil Companies' Chemical Engineers and Chemists. So, the BEST choice is to use only quality gas engine oil in High Performance gas engines. These oils offer MUCH HIGHER wear protection capability and can withstand somewhat higher temperatures before the onset of Thermal Breakdown. Leave the less capable Diesel oils for use only in Diesel engines, where they are meant to be used.