How is synthetic oil better than conventional oil for your car? Is it worth the considerable price difference?

The major advantage is that you can leave it in your engine's crankcase for about twice as many miles as conventional oil (also called mineral based oil, or "dino" oil) without changing it. This is because synthetic oil has a higher viscosity stability (they can withstand high engine temperatures since the molecules are consistent in size and shape, whereas some unstable molecules in dino oil can break down in extreme heat). Another advantage, and another reason why they can be left in the engine longer, is that synthetic oils contain virtually no contaminants.

Dino oil, while refined from crude oil, still contains minor amounts of wax, sulfur, and tars which can lead to varnish and tar build up, especially if left in the engine too long. As far as convincing someone that they should use synthetic oil over dino oil, that is up to the user. The owners guide is the best bet in this situation, something which largely goes unread with a car purchase.

Car owners should follow the recommended oil and viscosity type for their car and follow the recommended oil change interval (information on what octane fuel you should use is in here too). Whether its synthetic or conventional oil, each are subjected to carbon contamination from the combustion process, eventually turning the oil black. This results in a loss of lubrication properties and means its time to be changed.

Lastly, there are many claims that synthetics will increase the life of the engine, gas mileage, etc, etc. It seems that the effects of this are small, as listed in a February 2009 Car Craft article. While they did note a small increase in horsepower and torque, they left the reader to wonder if it was worth paying 2 to 4 times more per quart.

Synthetic oil certainly do outshine the traditional oil that we use on a regular basis. There are multiple ways that they outperform regular oils. Just check first that your engine is compatibile.

Synthetic Oils outperform regular oil in at least eight areas. synthetic-motor-oil-change-and-filters.c... The Amzoil site describing motorcycle synthetic oil, talks in length about these eight benefits. 1.

Improve Transmission Protection by improving the shear stability 2. Viscosity tests show that synthetic oils do not thin the way regular oil thins. 3.

Lower friction on clutch plates reduces slippage and increases the clutch life becaus eo fless wear. 4. Improved corrosion protection is witnessed with synthetic oils 5.

Gher heat resistance increases the life of synthetic oils over that of regular oils which decreases the number of oil changes. 6. Reduced foaming of synthetic oil reduces wear on the engine and metal parts because the oil has a more constant contact with the parts.7.

Anti wear additives in synthetic oil are equal or higher than in regular oils and reduce wear. 8. Cost effectiveness of synthetic oils becomes apparent with the less need for oil changes.

If you change oil less often it costs you less. The http://en.wikipedia.org/wiki/Synthetic_oil lists eight benefits as well. - Measurably better low and high temperature viscosity performance - Better chemical & shear stability - Decreased evaporation loss - Resistance to oxidation, thermal breakdown and oil sludge problems - Extended drain intervals with the environmental benefit of less oil waste.

- Improved fuel economy in certain engine configurations. - Better lubrication on cold starts - Longer engine life The jury is not fully decided on synthetic vs regular oil but the markings show that, in most cases, you have more to gain than to lose by going to synthetic. As in all cases you must check that synthetics are compatible with the engine you plan to use the oil in.

I use only synthetic oil in my motorcycles but not yet in my cars. Pogo.

Full synthetic oils and their filters are man-made, and tailored to have a controlled molecular structure with predictable properties. Todays high performance engines are built to use these tolerances. >How would you convince someone What does it matter, the engine will out live how long it will take a person to get tired of driving the same car.

Let the next owner worry about it.

These are the advantages of using synthetic oil over a conventional one: 1. It flows easily especially in cold weather so you can avoid loss of prime when the oil is cold. It is also highly resistant to viscosity breakdown due to heat, friction and chemical contaminants.2.

Using synthetic oil will result to longer change intervals which is 5,000 - 7,000 miles between oil changes compared to 3,000 for regular oil. There are others who noted up to 25K miles between changes.3. It makes the engine lasts longer because it is slippery there is less engine wear and greater engine longevity.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.