Synthetic oil

[MARTINO442]

I just purchased a 2012 genesis 3.8 it has 40000 mi. I do not know what kind of oil they were using. I want to use syntetic , any problems swithing over with 40k on the car,. Thanks

 

[EXBMWGUY]

There should be no problem.

 

[NSXNEXT]

You can switch either direction without any issues.

 

[homeofstone]

Switch is ok, but avoid mixing oils.

 

[Mark_888]

I just purchased a 2012 genesis 3.8 it has 40000 mi. I do not know what kind of oil they were using. I want to use syntetic , any problems swithing over with 40k on the car,. Thanks

Many people on this forum use synthetic 5W-30 or 0W-30 oil even though Hyundai recommends 5W-20. Hyundai is more interested in squeezing every last bit of MPG out of the engine in order to meet CAFE requirements, whereas most owners are a little more interested in engine reliability. Mobil 1 0W-30 Advanced Fuel Economy is probably a good compromise. You can buy it in 5 quart jugs at Walmart for about $23. Even if you have someone else do the oil change, you can usually save money by bringing your own oil.

 

[shagnat]

What about Royal Purple? Worth the increased cost or is it snake oil?

 

[homeofstone]

What about Royal Purple? Worth the increased cost or is it snake oil?

Not one I would use. I have used Valvoline Synpower 5w30 for years and put over 200k miles on cars before replacing them. I think that Mobil 1, and Penzoil Ultra are also very good. this site may help you decide http://www.amsoil.com/lit/g3115.pdf

 

[Mark_888]

What about Royal Purple? Worth the increased cost or is it snake oil?

About the same as any full synthetic on the market, but no better than most. A 5-quart jug of Mobil 1 is about $23 at Walmart, and Pennzoil Platinum is a bit less. Hard to bet those prices. Mobil 1 EP (Extended Protection) is about $25.

 

[Mark_888]

Not one I would use. I have used Valvoline Synpower 5w30 for years and put over 200k miles on cars before replacing them. I think that Mobil 1, and Penzoil Ultra are also very good. this site may help you decide http://www.amsoil.com/lit/g3115.pdf

Amsoil claims those tests were done by an independent thirty party lab. But they don't mention the name of lab, and there may have been other tests performed that are not shown in the Amsoil document. I would like to know who paid the lab to perform the tests (if they were paid by Amsoil, I would not consider them to be independent).

Amsoil claims the price of Mobil 1 EP is $9.51 a quart, but it can be bought at Walmart for about $25 for a 5-quart jug (about $5.00 per quart). They list AMSOIL Signature Series Synthetic Motor Oil at $10.15, but that does not include shipping.

AMSOIL Signature Series has too much phosphorus and zinc to be API certified (which can damage the emissions system), and could void your warranty if Hyundai found out you are using it (since not API certified). The other Amsoil oils (XL and OE) are cheaper and are API certified, but don't test nearly as well as the Signature Series.

 

[EXBMWGUY]

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[shagnat]

Some of the tests that were used were not very clear, but, a couple of them were. Regarding cold start protection, there were talking about -22*!!!! What? How many of us need protection down to -22*?

Heat was 302*...... do our engines get up to 302* (internal parts)?

So, some of the tests are useless IMHO. Given that set of data I have no need for Amsoil.

 

[homeofstone]

Some of the tests that were used were not very clear, but, a couple of them were. Regarding cold start protection, there were talking about -22*!!!! What? How many of us need protection down to -22*?

Heat was 302*...... do our engines get up to 302* (internal parts)?

So, some of the tests are useless IMHO. Given that set of data I have no need for Amsoil.

The answer to -22 is yes. They're owners in Canada, and Northern Midwest of U.S. that see temps like this every year. If an oil does well at -22 then it will do well at 10 degrees. Also some of the internal parts of an engine do get that hot.

 

[427435]

As someone pointed out, scamsoil is very good at marketing. A really good oil must do a lot of things-------cherry picking a particular test or three hardly tells you all you need to know. In particular, the 4-ball wear test was a test initially developed to test grease.

If are not a lubricant engineer, what you need to know is to buy an API approved oil (many scamsoil's are not) from a reputable supplier. To me, reputable supplier means companies like Shell (Pennzoil), Mobil, Chevron (Texaco and Havaline), etc.

 

[homeofstone]

Here are test results from the Petroleum Quality Institute of America
http://www.pqiamerica.com/March2013PCMO/Marchsyntheticsallfinal.html

 

[shagnat]

The answer to -22 is yes. They're owners in Canada, and Northern Midwest of U.S. that see temps like this every year. If an oil does well at -22 then it will do well at 10 degrees. Also some of the internal parts of an engine do get that hot.

I aware of areas getting to -22 but they are few and far between. Also, 302* is waay too hot for internal parts, IMHO.

My question was "how many" of us need that kind of protection? If looking at the disparity between -22* and 302* the "protection" is quite different, so, how are folks who live in temps way more normal, say 15* for lows in the winter and internal components being well below 302*, what is the REAL protection. So, the comparison between the low and high temp protection being so widely varied, that data is useless to most of us, just my 2 cents.

 

[homeofstone]

"Also, 302* is waay too hot for internal parts, IMHO." True for parts that are cooled by water. Internal lubricated parts in an internal combustion engine reach 300 degrees often and many times 400 to 500 degrees at the source of the friction in the engine such as the crankshaft where the wear track can be 100*+F above the engine oil temperature.

 

[427435]

I aware of areas getting to -22 but they are few and far between. Also, 302* is waay too hot for internal parts, IMHO.

My question was "how many" of us need that kind of protection? If looking at the disparity between -22* and 302* the "protection" is quite different, so, how are folks who live in temps way more normal, say 15* for lows in the winter and internal components being well below 302*, what is the REAL protection. So, the comparison between the low and high temp protection being so widely varied, that data is useless to most of us, just my 2 cents.

You might be surprised that there are more than a "few" that live in the first and second row of states under the Canadian border. While -22 is not an every winter day occurance, a 0w oil is a good idea any time the temp is below freezing---------especially if your car sits outside.

 

[shagnat]

You might be surprised that there are more than a "few" that live in the first and second row of states under the Canadian border. While -22 is not an every winter day occurance, a 0w oil is a good idea any time the temp is below freezing---------especially if your car sits outside.

"Few" is a relative term. By saying "few" I meant percentage vs the "rest" of the population. Just to keep it "relative".

Example: Population of Wyoming: 563,000

Example: Population of N Dakota: 672,000

Example: Population of Georgia: 9,687,000

So, saying "few" by using just those three states makes the term relative. Wish to pick some more nits?

 

[427435]

"Few" is a relative term. By saying "few" I meant percentage vs the "rest" of the population. Just to keep it "relative".

Example: Population of Wyoming: 563,000

Example: Population of N Dakota: 672,000

Example: Population of Georgia: 9,687,000

So, saying "few" by using just those three states makes the term relative. Wish to pick some more nits?

You have conveniently left out Wisconsin, Minnesota, Michigan, Northern New York, Vermont, New Hampshire, Maine, Colorado, Montana, South Dakota, and Idaho. You roll all those together, and it "ain't" just a few that deal with sub-zero temps a good share of the winter.

 

[Mark_888]

You have conveniently left out Wisconsin, Minnesota, Michigan, Northern New York, Vermont, New Hampshire, Maine, Colorado, Montana, South Dakota, and Idaho. You roll all those together, and it "ain't" just a few that deal with sub-zero temps a good share of the winter.

I was in Chicago one time and it was -27 F. Plus the wind downtown (where I was at) was about 35 MPH.

Another time I was in Denver when it was -20 F (admittedly rare), and I went out to start my car every 3 hours because I figured that after 9 hours at work it would not otherwise start.