Switching from Synthenic to Dyno Oil?
I have a Workhorse Chasis with the Chev 8.1 engine. It has a 22000 miles. The previous owner has been using Synthenic oil. I've been thinking of switching to Dyno......what are the pros and cons o...
Forum Discussion
I have been testing engine oils in autos, trucks, and motor homes since 2000.
Without any question, synthetic oil is superior to dino oil. It will not only provide longer drain intervals, but increased life for any engine no matter what the change interval.
Engine oil doesn't wear out, it just gets dirty and that depletes the oil additive package. When the additive package is depleted, the oil gets dirtier, and the process continues to multiply. The dirt and depletion of the additive package is the result of products of combustion escaping the cylinders and contaminating the oil.
The cycle described above is unique to internal combustion engines. When is the last time you had to change oil in your refrigerator or air conditioner? The time to change oil, no matter what the type, is when it is dirty, and an oil analysis is the only way to determine that. You can get your oil analyzed for a much lower cost than changing it -- maybe $20.00.
High tech filtration (by pass oil filters) can keep the oil clean enough so that it never needs to be changed. I have seen a bearing shell from a Cummins engine after 1,000,000 miles with no oil changes, but with a bypass oil filter that still had the factory scoring on the bearing shell. That engine used Shell Rotella T 15w-40. The magic wasn't in the oil, but in the filter.
I have run a Cummins 8.3 for over 100,000 miles with no oil changes and Mobil Delvac 10w-40, but with a bypass oil filter and the oil analysis showed it to be "new oil."
The only quality way to tell when to change the oil is by an oil analysis. Any other method is a guess.
You pays your money, and you takes your choice. I am not here to judge, but I use synthetic all the way.
Good Luck!
Wil
Without any question, synthetic oil is superior to dino oil. It will not only provide longer drain intervals, but increased life for any engine no matter what the change interval.
Engine oil doesn't wear out, it just gets dirty and that depletes the oil additive package. When the additive package is depleted, the oil gets dirtier, and the process continues to multiply. The dirt and depletion of the additive package is the result of products of combustion escaping the cylinders and contaminating the oil.
The cycle described above is unique to internal combustion engines. When is the last time you had to change oil in your refrigerator or air conditioner? The time to change oil, no matter what the type, is when it is dirty, and an oil analysis is the only way to determine that. You can get your oil analyzed for a much lower cost than changing it -- maybe $20.00.
High tech filtration (by pass oil filters) can keep the oil clean enough so that it never needs to be changed. I have seen a bearing shell from a Cummins engine after 1,000,000 miles with no oil changes, but with a bypass oil filter that still had the factory scoring on the bearing shell. That engine used Shell Rotella T 15w-40. The magic wasn't in the oil, but in the filter.
I have run a Cummins 8.3 for over 100,000 miles with no oil changes and Mobil Delvac 10w-40, but with a bypass oil filter and the oil analysis showed it to be "new oil."
The only quality way to tell when to change the oil is by an oil analysis. Any other method is a guess.
You pays your money, and you takes your choice. I am not here to judge, but I use synthetic all the way.
Good Luck!
Wil
