Better fuel economy protects horsepower. And cleaner pistons the pennzoil platinum also comes out of houston texas let's compare the evaporative loss of the full synthetic. Against the platinum.

The Correct Change Interval for Synthetic Oil For the vehicles in Car and Driver's long-term test fleet, those intervals range from 6000 to 16,000 miles (and almost always include oil-filter changes).

5000 mis - 8000 max. Never change a full- synthetic engine oil in less than 5k mi (unless its been 1 full yr & you havent exceeded 5k mis).

It is formulated to provide 40% better performance than conventional motor oil1 and allows fewer oil changes compared to conventional motor oil. So, if your car already requires full synthetic, or if you're looking to upgrade from conventional or synthetic blend Pennzoil® Full Synthetic is the right choice for you.

Pennzoil Ultra Platinum Pennzoil Ultra Platinum Our Best Full Synthetic Motor Oil, made from natural gas.

Because Pennzoil Synthetic motor oil is made from natural gas, it contains fewer of the impurities found in base oil made from crude.

Better For Older Engines This being said, however, it is still not recommended to use synthetic oil in engines that have experienced significant actions – specifically, those that have reached around 75,000 miles on the odometer.

6 Signs Your Car's Oil Needs Changing

1. Check Engine or Oil Change Light. The most obvious alert that there's an issue with your oil will come from the car itself.
2. Engine Noise and Knocking.
3. Dark, Dirty Oil.
4. Oil Smell Inside the Car.
5. Exhaust Smoke.
6. Excessive Mileage.
7. Change Oil Promptly.

about 7-8 years Synthetic oil and synthetic blend oil will last about 7-8 years, and maybe even longer. If you cannot find the expiry date, make sure you use up any half-opened or unopened motor oil bottles within 2-5 years of the manufacturing date.

Yes, synthetic oil is better for your engine than conventional oil. Although conventional oil (i.e., mineral oil) can provide adequate lubrication performance, it can't compete with the overall engine performance and protection provided by synthetics.

A few disadvantages of synthetic oil to be aware of include: Probably the most glaring downside of synthetic oil is the cost. The price of synthetic oil is around two to four times the price of conventional oil. Synthetics may be more prone to additives precipitation during cold storage conditions.

Best Synthetic Oils - Pennzoil Platinum Full Synthetic 10W-30 Motor Oil. Pennzoil's Platinum synthetic oil is a fan-favorite, and it's tough to argue with 10,000 five-star ratings. It quiets down noisy engines, smoothes out rides, and increases the fuel economy of a car.