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Join Date: May 2008
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Oil smells like gas
There is nothing in the manual indicating synthetic is required. Hence, I would bet you are getting regular dinosaur oil from the factory and dealer. If you read the manual they provide the minimum standards (SM, GF-3, etc) and the weights. The synthetic requirement is just a rumor not supported by anything Hyundai has published. They did publish a TSB for 3k miles oil changes on the 2.0T, however. They also have one highly recommending the Hyundai oil filter due to the potential for knocking. I got my first oil change at the dealer for free. After that I will run synthetic blend, 5-30w, and change every 3k. If you can afford it or your driving style demands it full synthetic is never a bad choice in my view.
not the whole regular vs synthetic again. blaaaarrggggg.
tired of explaining this already.
The whole deal with regular and synthetic is that the molecules for synthetic are more uniformed and smaller.
where the misconception of mixing the 2 is from people messing with older cars. With regular, since the molecules are more irregular, its more easy to build up sludge. sludge is from oil mixing with moisture and gas vapor. synthetic can build up sludge, but takes more moisture and gas to do so. When you add synthetic to an OLDER engine that's been using regular for a majority of its life and not well maintained, the the synthetic loosens the sludge that would be hanging around in odd spots. the the chunks of sludge start to float around and clogs crap up.
If you are switching oils on an older engine, you do it slowly, like 1 quart and the rest regular, for the first change and change the ratio for the changes there after until running full synthetic.
With all that explained:
1. these engines aren't old
2. engine comes from the factory with breakin oil, which is regular
And the owners manual link posted, says recommended not required.
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