Arguments for Synthetic Oil:
* Better Protection: Synthetic oils offer superior high-temperature protection and better low-temperature flow than conventional oils. This is especially beneficial in older engines that might have more wear and tear.
* Longer Drain Intervals: Synthetic oils typically last longer between oil changes, potentially saving you time and money in the long run (though always check your owner's manual for recommended intervals).
* Improved Fuel Economy (potentially): Reduced friction from synthetic oil *may* lead to slightly better fuel economy. The difference is usually small, however.
* Cleaner Engine: Synthetic oils can help keep your engine cleaner by better suspending and removing contaminants.
Arguments against Synthetic Oil (for an older vehicle):
* Cost: Synthetic oil is more expensive than conventional oil.
* Potential for Leaks: In some older engines with worn seals, synthetic oil's ability to seep past seals might be slightly higher than with conventional oil, leading to leaks. This is not guaranteed, but it's a consideration.
* Unnecessary Expense: If your engine is already worn, the benefits of synthetic might not outweigh the added cost. Conventional oil will still provide adequate lubrication.
Recommendation:
For a 2001 Ford Explorer Sport Trac, the decision is less clear-cut than for newer vehicles. If your engine is in good condition and you want the best possible protection and potentially longer drain intervals, then synthetic oil is a good choice.
However, if your engine has significant wear or a history of leaks, sticking with a high-quality conventional oil might be a more practical and cost-effective approach. Consider your budget and the overall condition of your engine when making your decision.
Before you decide:
* Check your owner's manual: While it likely won't explicitly recommend synthetic, it will specify the oil type and viscosity (e.g., 5W-30, 10W-30). Using the correct viscosity is crucial.
* Consult a mechanic: A trusted mechanic familiar with Ford Explorers can assess the condition of your engine and offer advice tailored to your specific vehicle.
Ultimately, the best oil for your 2001 Sport Trac is the one that meets the specifications outlined in your owner's manual and keeps your engine running smoothly and reliably.