Can You Switch from Conventional to Synthetic Oil? (Yes, Here's How)

Yes, you can safely switch from conventional oil to synthetic oil in virtually any vehicle. In fact, making the switch is one of the best upgrades you can make for engine protection and performance.

Modern full synthetic oils are fully compatible with engines that previously ran conventional oil. Many vehicles — even older ones — actually perform better on synthetic.

Benefits of Switching to Full Synthetic Oil

Switching to a high-quality full synthetic like TriboDyn TRI-EX² offers several advantages over conventional oil:

Better Protection — Superior resistance to heat and breakdown, especially under towing, performance driving, or extreme temperatures.
Reduced Friction & Wear — TriboDyn’s patented ceramic coating technology actively forms a protective film on metal surfaces, going beyond what conventional oils can do.
Improved Fuel Economy — Many drivers report 4–6% better fuel mileage after switching (some see even higher gains).
Cleaner Engine — Synthetics resist sludge and varnish formation better than conventional oils.
Longer Drain Intervals — You can often go longer between oil changes without sacrificing protection.
Better Cold Starts — Synthetic oil flows better in cold weather, providing faster protection at startup.

Common Concerns When Switching

Will synthetic oil cause leaks in my older engine? This is a common myth. While synthetic oil is thinner at operating temperature, it is very unlikely to cause new leaks in a healthy engine. If your engine already has worn seals or gaskets, synthetic may make existing leaks slightly more noticeable — but it doesn’t usually create new ones.

Will switching clean out sludge and cause problems? Synthetic oils do a better job of keeping engines clean. In very dirty engines, there is a small chance that loosened sludge could clog the oil filter. To be safe, change the oil and filter again after the first 1,000–3,000 miles when switching from a very dirty conventional oil.

Is it expensive? Full synthetic oil costs more upfront, but many people find the longer intervals and better engine protection make it worth it over time.

How to Make the Switch Properly

Drain the old conventional oil completely.
Replace the oil filter at the same time.
Refill with your chosen full synthetic oil (we recommend TriboDyn TRI-EX²).
After 1,000–3,000 miles, change the oil and filter again (especially if your engine was previously running conventional oil for a long time).
After the second change, you can begin following the recommended drain interval for the synthetic oil.

Here is a complete Step by Step Guide to changing your engine oil.

Why We Recommend TriboDyn TRI-EX²

If you’re going to make the switch to synthetic, why not choose one of the most advanced options available? TriboDyn TRI-EX² full synthetic oils are formulated with patented ceramic coating technology that actively reduces friction and protects metal surfaces in a way standard synthetic oils cannot.

Many drivers notice smoother operation, lower temperatures, and better fuel economy after switching to TriboDyn.