Difference in motor oils; natural vs synthetic.?

Answer 1

Mobil oil has a great website for you to compare the specifications to compare the characteristics or any of their Synthetic viscosity's and their regular oils.

Answer 2

In a nutshell, synthetic lubricants are assembled by chemists in a lab. They are pure, uniform, and designable. Conventional oil is made from refined crude oil, which is an impure substance and contains many undesireable molecules even after the refining process. That said, beware many so called 'synthetics' are ultra-refined petroleum (group III, hydrocracked or hydroisomerised petroleum) Castrol Syntec is an example. In fact, do a google search for Mobil vs Castrol and you will see Mobil sued Castrol and lost over this very issue. A court decided legally that these oils can be called synthetic, so buyer beware. Amsoil uses 100% synthetic group IV polyalphaolefin base stock for their oils, which among other benefits noted in the above posts greatly improves the oil's resistance to thermal and oxidative breakdown, greatly extending oil change intervals. Come on; who promotes the 3,000 mile oil change? Jiffy Lube and oil companies. Check out your new car owner's manual-- chances are the oil change intervals are 6months/7,500 miles. Amsoil is the only company that says to buy less of their product since they have been promoting 25,000 mile/1 year oil changes for 35 years. And Europeans have been way ahead of us for years-- they go 10,000 miles or more on their oil. Read this eye opener on extended drains: http://www.amsoil.com/news/oil_drain_intervals_2_06.aspx?zo=1463115


anyway, for more general info on oil and what '10W-30' actually means click here: http://www.amsoil.com/lit/g52.pdf

here are some common myths about synthetics: http://www.amsoil.com/articlespr/articlemyths.aspx?zo=1463115

Answer 3

Natural oil for a car is not good enough to keep it lubed and cannot with-stand high temp inside the engine under full load. Synthetic keeps the pistons and engine components lubed and can take the high temp under extreme engine load. You always want to keep all pistons lubed at all times. After a vehicle sits for six hours or more the engine oil ends back into the oil pan. With synthetic it stays in the pistons and when you start your vehicle cold it'll still be lubed and prevent you from damaging your engine. However, they say once you go synthetic you can never go back. Go with Mobile 5W-30 synthetic. Your engine will last longer and run much better.

Answer 4

Natural/conventional "dinosaur" oil that is pumped from the ground and refined is fine and dandy and you can run it for the life of your car with no problems, but synthetic blends and synthetic oils have a few more perks than regular conventional. ALL oils have a basic additives and detergents package, blends and full synthetics have more additives and stronger detergents. Synthetics also are manufactured to have smaller carbon molecules to better lubricate, they resist heat, cold and wear better as well. tak3032 is a moron - you can switch types of oil back and forth all you want with no damage to your engine. personally, I only use synthetics, i plan on keeping my vehicles a long time and want to reduce the risk of buildup and wear. it's worth the extra $$ to me, but it's all up to you. just remember to change the oil and filter regularly according to your vehicles reccomended service guidelines in your owner's manual.

Answer 5

The difference i really dont know - I know you would start off with a natural oil in a new engine and after the run in period you would change to a fully synth (which due to modern manufacturing processes, some say is now not required, but I digress)
I would guess that the synths can perform better at higher temperatures and therefore higher RPMs however this may be utterly wrong.

Answer 6

Synthetic heavy weight in the summer and Synthetic light weight in the winter. When you change your oil you should go by season. Check your owner's manual. it says the same thing.
If not all-synthetic oil ($$$) then maybe Synthetic blend($$).

Oh, and yeah, tak is a moron.

Answer 7

Synthetic oils have a much greater tolerance for extreme high and extreme low temperatures. They don't break down, chemically, as "natural" oils do.

If you don't own and operate a car in extreme conditions, my advice is to stick with natural oils. I personally prefer to use Havoline oils (from Texaco) because they don't have a parafin wax base to them. So they don't leave any deposits on the interior components of your engine. I typically keep my cars and trucks for 200,000 miles and I never have any problems with them. A proper preventive maintenance program works wonders to keeping them on the road forever.

A quart of oil is cheap insurance against engine failure.

Answer 8

Synthetic oils have a higher resistance to break down at high temperatures and loads.
There is much research and references in this link
http://en.wikipedia.org/wiki/Synthetic_oil

Answer 9

I wouldnt. i might proceed to apply huge-unfold oil, and whether that's ingesting slightly too lots oil, i might use a lucas additive. you additionally can change over to a severe milage oil in case you desire. that's in many cases not a robust thought to change back and fourth between guy made and huge-unfold motor oil. in the adventure that your going to make the change, your commited. Alot of persons midlessly have faith all of those commericials, and sense that guy made oil is the only factor to apply and that the international will bring about case you dont. Thats not actual. additionally, dont purchase this "10,000 mile oil substitute" bs. you nevertheless could desire to alter oil in many cases. It isnt lots that the oil breaks down, in spite of the incontrovertible fact that it a lot up with contaminants and debris. No oil, guy made or not, is going to steer clear of this from going on. shop working huge-unfold oil, and alter it in many cases. As i discussed before, in case you sense that's ingesting too lots oil, i might evaluate a lucas additive. i'm a mechanic and we not often use guy made oil, and a few of our purchasers automobiles have over 200,000 miles on them. a robust customer got here in at present together with his suburban. 1990 with 184,000 miles. Oil replaced religiously, and no significant issues. Jim