Some cars as well as aircrafts use synthetic oil. Whether you should use it in your car or not will depend on the age of the car as well as its milage. If its too old, its probably not a good idea.
Synthetic oils are manufactured either from raw materials or by modifying a petroleum product. The main use of a synthetic oil is to act as a lubricant in conditions of extreme temperature. They can be used as a lubricant in both aircraft and automobiles.
Synthetic works really well but is more expensive. Also, if you start using synthetic oil, you need to continue to use it and avoid mixing the two types of oil. If you are not sure you could keep on with the synthetic, then use traditional. In any case, get your oil changed regularly.
It's okay to use Synthetic oil on any vehicle but bare in mind, if your vehicle has previously run on regular oil you will need to drain all the oil out completely in order to switch to synthetic, once you run on synthetic oil though you have to keep the oil synthetic because switching between different types of oil will really mess up your vehicle.
yes you can use synthetic oil if you want to
No, old oil can use synthetic engines
synthetic oil will never break down, it will get dirty and need changed but will never break down and result in engine failure. I was involved in an oil study back in the 1990's when I work for a company in Houston that builds oil drilling equipment. We tested all types of oil. synthetic oil is the best lubricant by far.
You can use synthetic, synthetic blend, or conventional oil. It is your choice.
Synthetic oil.
Yes. Marvel mystery oil is fully compatible with synthetic oil.
You don't have to use synthetic oil for your Saturn Vue but synthetic oil is said to lead to better performance by the car. Check out this chart on different types of oil that can be used: http://www.synthetic-motor-oil-change-and-filters.com/best-oil/oil-change-saturn-ion-and-vue-ecotec.php
Yes you can use synthetic oil in a 97 Escort.
You can use API GL-4, SAE 75W90 semi synthetic for your Galant. There are standard types of oil used in these types of cars.