Synthetic oil is perfectly safe to use in the new Sorento.
Originally Posted by picard12
What is oil type sorento use?... Is it safe to use synthetic on new sorento ?
In fact, with very few exceptions, synthetic oil can be used in ALL new cars (and in ‘most’ older cars) regardless of make or model
. (One exception, for instance, might be Mazda vehicles that have a 'rotary' engine.)
Synthetic oil is superior to conventional oil and significantly outperforms it on all counts. Synthetics deliver superior protection and performance in temperature extremes (hot or cold), keep your engine cleaner by significantly reducing the formation of sludge and varnish, resist oxidation and acid formation, and provide unsurpassed friction reduction and wear protection for extended drain intervals. Also, many vehicles today leave the factory with synthetic oil installed as the initial fill.
I personally use 100% Full Synthetic Oil
in all our vehicles, new and old, including both the Sorento and our 2000 Jeep Grand Cherokee in which we have been using synthetic oil since it was new (it now has almost 400,000 KM on it and the engine still runs great).
Here are a few good links you can check out to find out more about synthetic oil:
Mobil Canada | Car Engine Oils | Products | The Benefits of Synthetics
Synthetic Oil: Rx For Long Engine Life, by Curt Scott
As already stated, many vehicles today leave the factory with synthetic oil as the initial fill:
Synthetic Oil | Cars Filled with Mobil 1
I believe that the Sorento might actually be one of those vehicles (at least in some
countries anyways). The owner’s manual does
mention Total Quartz, which is a synthetic oil, and ‘kiatechinfo.com’ list several
other synthetic oil brands that they recommend.
KIA MOTORS CORPORATION recommends TOTAL
One of the myths surrounding synthetic oil is that new engines still require an initial break-in period with conventional oil before you can switch to synthetic. However, with most modern engines today, this is simply no longer the case. Today’s engines are built to much higher/tighter manufacturing tolerances
(due to more accurate and precise machining and assembly) than the ones in older vehicles, eliminating the need for a long break-in period with conventional oil.
In the Sorento’s owner’s manual (p.1-5) it states: “No special break-in period is needed. By following a few simple precautions for the first 1,000 km (600 miles) you may add to the performance, economy and life of your vehicle.”
Now that said, I still believe that it is very important that you closely follow the ‘precautions’ outlined in the manual for proper engine break-in; however
, even if synthetic oil wasn’t the ‘initial factory fill’, you do not need to wait before switching over
Now as to the question of how frequently you should change your oil
, the quick answer is 'it depends'
. The subject of oil change intervals is a hotly debated topic that even the so called ‘experts’ can’t seem to agree on. The truth is: there is no magical one-size-fits-all number
Oil change intervals depend on a number of different factors such as:
The ‘type’ of oil used:
Synthetic oil allows for significantly longer drain intervals then conventional oil – especially
high quality ‘extended drain’ Synthetic Oils such as Mobil 1 Extended Performance
, Amsoil Signature Series
, Royal Purple HSP Series
, Total Quartz 9000 Series
, and so on.
Driving conditions (normal or severe):
For instance, frequent city driving or repeated short distances driving; driving in very cold, very hot, dusty, or sandy environments; towing a trailer; etc, will require more frequent oil changes. (Check your owner’s manual for more info on severe driving conditions.)
The make, model and year of your car:
Because of technological advances in modern engine materials, design and built, as well as significant improvements in engine oil formulations, recommended
oil change intervals for new vehicles have become considerably longer.
The bottom line is, the recommended oil change interval will be different for different people.
One thing that is
certain however, is that the 3,000 miles (or 5,000 KM) oil change interval recommendation is a thing of the past.
The 3000 Mile Myth / Frequently Asked Questions / What People Are Saying
Personally, I change the oil in my vehicles twice a year, regardless of mileage, using top quality ‘extended drain’ Synthetic Oil.
Now as to the question of what brand
of oil you should choose, well that’s entirely up to you. Different people have their own personal favorite brand of oil they prefer and recommend and it’s very easy to get into a heated argument as to which one is the ‘superior’ product. Any high quality ‘name brand’ oil will do just fine provided it meets or exceeds the minimum required specs outlined in your owner’s manual
. But of course, if you want the absolute best for your Sorento’s engine (like I do mine) or desire to extend your oil change intervals, then I would suggest, as I already mentioned above, going to a high quality Full Synthetic Oil.
That brings us to the question of the oil SAE viscosity grade
. All vehicle manufacturers today recommend the use of 'multi-grade' oil. The Sorento’s owner’s manual (p.8-8) states: “For better fuel economy, it is recommended to use the engine oil of a viscosity grade SAE 5W-30 (API SM / ILSAC GF-4). However, if the engine oil is not available in your country, select the proper engine oil using the engine oil viscosity chart.”
The ‘viscosity chart’ lists two other ‘recommended’ oil grades (5W-20
). (Incidentally, the ‘oil filler cap’ also says SAE 5W-30
Now because these are the grades of oil Kia ‘recommends’ for use in the Sorento, does this mean that they are the only
grades that can be used in the Sorento’s engine? Well, not exactly. First, let’s look at what these numbers actually mean.
The viscosity of a fluid describes its resistance to flow – the thicker the oil, the higher its viscosity. The first number (5) is the 'cold' viscosity rating of the oil, the ‘W’ stands for winter, and the last number (30) is the 'hot' viscosity rating of the oil. Therefore, when the oil is cold it has a rating of 5. When the oil is hot (i.e. circulating in a hot engine) it has a rating of 30. What this means is that a 0W-30, a 5W-30, and a 10W-30 grade oil will all have essentially the same ‘thickness’ when circulating in a hot engine but will have a different ‘thickness’ when cold.
Note: The viscosity grade numbers (i.e. the 5 and the 30 in a SAE 5W-30 oil) are simply a rating
representing the viscosity range
of the oil. They are NOT the actual viscosity of the oil.
The viscosity of an oil is temperature dependent
. In other words, a particular grade of oil will have a different viscosity/thickness at different temperatures.
Therefore, the question as to which oil viscosity grade can
be used in your car’s engine will depend on a number of different factors such as, for instance, the type of climate you will be driving in. If you live in a very hot climate (i.e. Australia, Central America) you could use, although I don't particularly recommend or advise it, an oil of a slightly higher viscosity grade (10W-40 for instance), and if you live in a much colder climate (i.e. Canada, Russia) you could use an oil of a slightly lower viscosity grade (0W-20 for instance). However, the recommended viscosity grades should do just fine in all climates.
I am currently using SAE 0W-30 in both vehicles but am planning to switch the Sorento to SAE 0W-20 (at least for the winter months - it does get pretty cold up here in Northern-Ontario, Canada). Because a 0W-xx grade oil remains more ‘fluid’ in colder temperatures, it gets up into the engine more quickly upon start-up, therefore minimizing engine start-up wear, and reaches the proper 'hot' viscosity (thickness) faster, further minimizing wear.
For more on this subject, you might also want to check out these other threads:
Is there a difference between oil brands?
Initial Oil Change
If you desire more in-depth information you can also check out:
Motor Oil 101 - Bob is the Oil Guy