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JFrusci · 04-07-2011, 04:08 PM

I just bought a 2011 Kia Forte Koup SX and need to know which type of synthetic oil to put in.

**ItsaRuck!** · 04-07-2011, 05:26 PM

(04-07-2011 04:08 PM)JFrusci Wrote: I just bought a 2011 Kia Forte Koup SX and need to know which type of synthetic oil to put in.

Any brand is ok as long as it meets the latest SAE standards and is 5W20. I use Mobil 1. Also, stay as far away as you can get from Fram oil filters. These engines do not like them, and in general, are inferior to all other filters on the market. I use Wix with very good results.

KoupCoupe · 04-07-2011, 06:15 PM

OP...do you think you HAVE to use synthetic?

It's your choice, but these engines do not need synthetic.

Save money...Just use Castrol 5w-20, change it regularly, and you won't have any problems!

**ItsaRuck!** · 04-07-2011, 07:19 PM

(04-07-2011 06:15 PM)KoupCoupe Wrote: Save money...Just use Castrol 5w-20, change it regularly, and you won't have any problems!

That BS. The fuel savings by using synthetic more than pays for the synthetic. I've documented on 4 cars anywhere from a 5% to 15% improvement in fuel economy depending on which synthetic was used vs dino oil. At today's gas prices, that's major money in the pocket! Wink

JFrusci · 04-08-2011, 01:50 AM

Ok, I have decided to go with Mobil 1 5w-20 extended performance. Considering that I just got the car yesterday, when should I bring it in to put the Mobil 1 in?

On a side note, I notice that the SX model seems to have a loud engine. Does anyone else notice this???

**ItsaRuck!** · 04-08-2011, 09:23 AM

(04-08-2011 01:50 AM)JFrusci Wrote: Ok, I have decided to go with Mobil 1 5w-20 extended performance. Considering that I just got the car yesterday, when should I bring it in to put the Mobil 1 in?

On a side note, I notice that the SX model seems to have a loud engine. Does anyone else notice this???

1000 miles is best. It will wash most all of the break in debris out. These engines are known to be noisy because of the cam setup. Synthetic oil quiets them right down.

JFrusci · 04-08-2011, 12:38 PM

(04-08-2011 09:23 AM)ItsaRuck! Wrote: 1000 miles is best. It will wash most all of the break in debris out. These engines are known to be noisy because of the cam setup. Synthetic oil quiets them right down.

Has yours quieted down after break in/synthetic oil change?

**ItsaRuck!** · 04-08-2011, 03:23 PM

(04-08-2011 12:38 PM)JFrusci Wrote: Has yours quieted down after break in/synthetic oil change?

Yup. It's amazing what a difference it made. The same engine was in my Dodge Caliber, and everyone that switched to synthetic noticed how quiet the engine became.

KoupCoupe · (This post was last modified: 04-09-2011 08:43 AM by KoupCoupe.)

Holly crap! I didn't realize synthetic oil was so great...15% better gas mileage and quieter engine..it's a miracle oil! Now why won't the car manufacturers get on board and use it? Go ahead and spend 3 times as much for your oil -- obviously the car manufacturers have NO CLUE about this miracle oil. How stupid of them.

I "bought" into the BS hype about synthetics...and put it in a Chevy Cobalt SS 2.4. Did NOT get an increase in gas mileage (documented), did NOT go any faster on the dragstrip (documented), and did NOT quiet the engine down any (ear observation).

If you're inclined to use it do so...it WILL NOT provide any additional benefits to your car over conventional oil...but it WILL MAKE your wallet lighter. The synthetic oil manufacturer WILL benefit...and they thank you.

ALL the car manufacturers HAVE to meet Federal mileage standards...IF synthetic oil increased fuel mileage as much as 10% that would mean a car getting 30 MPG with dino oil would get 33 MPG with synthetic oil. The car companies WOULD JUMP all over synthetic oil IF this were true.

Seriously, your engine is warranted by Kia for 100,000 miles (original owner only). If synthetic oil made a REAL difference over conventional oil Kia would require it to save themselves as much as they could.

**ItsaRuck!** · 04-09-2011, 10:02 AM

A Chevy Cobalt? I'm surprised it would hold together under any circumstance. I could write a long rebuttal with all the facts and figures, but it wouldn't [obviously] change your mind. Suffice it to say, in the space and military industry that I was in (research), synthetic is all that is used. Conventional oil can't cut the muster. My years in research gave me the unbiased ability to sort fact from fiction. My opinions are no nonsense based on observed facts. My results weren't based on one tank or one oil change. Final results came after at least 2 oil changes and several tank fulls of gas. This allowed for anomalies to be filtered out so only typical factual results were left. I've been using synthetic since 1982 with great results, and will continue. Some of the cars I've had came factory filled with synthetic with "Use Synthetic Oil Only" as a requirement. Many cars nowadays require it's use, and most all the engines that are turbocharged or supercharged.

I can buy a 5qt container at Walmart of conventional oil for about $18, or spend $27 for Mobil 1. Even if I only get a 1% improvement in gas mileage; I've saved the difference. I also like the extra degree of protection synthetic gives in the hot summers of the desert southwest.