2010 Genesis Coupe 3.8 and Penzoil Ultra...

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I'm going to say this. It isn't the same engine, but look at the Ford Crown Victorias 4.6L V8. Police departments, and taxi companies use bulk cheap dino 5W-20, and they go for hundreds of thousands of miles. Most 5W-30s will end up being fairly near a 5W-20 by the end of the OCI because of shearing. 5W-20 on the other hand is very shear stable and will not thin out very much if at all. If you want to run 5W-30 that is you're choice, but just because 5W-20 is thinner than 10W-30 doesn't mean that it is bad. Chrysler V8 engines REQUIRE 5W-20 for the MDS to work. Just saying that 5W-20 will protect you're engine just as well as any thicker oil will, if not better.
 
I would use the 10w30. You are correct on it being a more rugged oil. I use it in my Hemi that is speced for 5w20 and Ive used the 5w20 and the 10w30 and I cant tell any difference. I actually get better fuel milelage on the 10w30. Go figure.I may even try the 15w40, if your manual says that is permittable, that is definentely the grade I would use. 15w40 oil is cheaper, alot more robust, cleaning agents are so much better than any gasoline oil on the market. That is a super tough oil. 10w30 would be the middle of the road approach, but if you are not worried about fuel milelage and want the best protection and clean motor, use the 15w40. Thin oils are the new trend, sorta like a fad for now. Any of the oils will work fine, contrary to popular belief by alot of people on here, there is such little difference in "real life world" performance, your engine will never know the difference.
 
Originally Posted By: PurplePride
Originally Posted By: postjeeprcr
Originally Posted By: PurplePride
Since it says 5w20, wouldn't 0w20 be even better, generally speaking?
Unless it's one of those rare dino 0w20s, seems like it should be the choice here.


Dino 0W20?


I've managed to read that Honda makes a non-synth 0w20. Threads on these new oils are few at the moment, but I was surprised to read that as well.
With all I've gathered on BITOG, why would we recommend a 5w20 and not the 0w20? Seems to me that 5w20s can be of lesser quality than 5w30 of the same oils and 0w20s in general?



All 0W-XX oils are at least a GPIII synthetic and that includes the Honda brand 0W-20.
According to Jeff Jetter, American Honda's principal chemist, the Honda brand 0W-20, made for them by Idemitsu in Indiana, is primarily a GPIII based oil.
The reason that some assume it is not a syn' oil is because it's not labelled as such.

With very few exceptions, a 0W-20 will out perform a 5W-20 under all conditions including high temperature protection.
 
Originally Posted By: CATERHAM
Originally Posted By: PurplePride
Originally Posted By: postjeeprcr
Originally Posted By: PurplePride
Since it says 5w20, wouldn't 0w20 be even better, generally speaking?
Unless it's one of those rare dino 0w20s, seems like it should be the choice here.


Dino 0W20?


I've managed to read that Honda makes a non-synth 0w20. Threads on these new oils are few at the moment, but I was surprised to read that as well.
With all I've gathered on BITOG, why would we recommend a 5w20 and not the 0w20? Seems to me that 5w20s can be of lesser quality than 5w30 of the same oils and 0w20s in general?



With very few exceptions, a 0W-20 will out perform a 5W-20 under all conditions including high temperature protection.


Hence, my question. Seems that if 5w20 is on the cap, 0w20 is better.
 
Originally Posted By: Panzerman
I would use the 10w30. You are correct on it being a more rugged oil. I use it in my Hemi that is speced for 5w20 and Ive used the 5w20 and the 10w30 and I cant tell any difference. I actually get better fuel milelage on the 10w30. Go figure.I may even try the 15w40, if your manual says that is permittable, that is definentely the grade I would use. 15w40 oil is cheaper, alot more robust, cleaning agents are so much better than any gasoline oil on the market. That is a super tough oil. 10w30 would be the middle of the road approach, but if you are not worried about fuel milelage and want the best protection and clean motor, use the 15w40. Thin oils are the new trend, sorta like a fad for now. Any of the oils will work fine, contrary to popular belief by alot of people on here, there is such little difference in "real life world" performance, your engine will never know the difference.


You live in Florida so I'll forgive you for propogating such utter nonsence.

For all intents and purposes the 10W-30 is a redundant synthetic grade that's made for marketing purposes only. It has has vertually no stability advantages over a 5W-30 syn.

One would be very foolish indeed to use a 15W-40 deisel oil in a 20wt auto application particularily in the winter months. Even at just 32F it's at least 500% thicker.

20wt oils are hear to stay and are anything but a "fad". In fact we may soon start seeing the 0W-10 grade. It is already the factory fill on many cars imported from Japan and may even be the factory fill of the OP's Hyundai.
 
I'm going to recommend my brother - who just got the same Hyundai - use the Toyota 0w20 and PureOne combo.
He lives in Atlanta...
 
An oil temperature gauge and a chart or two will tell you what oil to use concerning the high temp viscosity.
I mean, if you are into high performance, then you should monitor your oil temps. Too hot, and the 5-20 is not the best choice. How hot is that? Over 220 F, IMO.
 
Originally Posted By: CATERHAM
Originally Posted By: Panzerman
I would use the 10w30. You are correct on it being a more rugged oil. I use it in my Hemi that is speced for 5w20 and Ive used the 5w20 and the 10w30 and I cant tell any difference. I actually get better fuel milelage on the 10w30. Go figure.I may even try the 15w40, if your manual says that is permittable, that is definentely the grade I would use. 15w40 oil is cheaper, alot more robust, cleaning agents are so much better than any gasoline oil on the market. That is a super tough oil. 10w30 would be the middle of the road approach, but if you are not worried about fuel milelage and want the best protection and clean motor, use the 15w40. Thin oils are the new trend, sorta like a fad for now. Any of the oils will work fine, contrary to popular belief by alot of people on here, there is such little difference in "real life world" performance, your engine will never know the difference.


For all intents and purposes the 10W-30 is a redundant synthetic grade that's made for marketing purposes only. It has has vertually no stability advantages over a 5W-30 syn.


It depends on how they went about making both oils. If the 5W-30 uses higher VI base oils (or correction fluids) then you're correct, if the 5W-30 is obtained with polymeric VIIs dumped into thinner base oils then it be be less stable than the 10W-30. It's not uncommon to see 10W-30s with lower volatility and more shear resistance versus a 5W-30, but it's definitely on a manufacturer basis. In some cases the 5W-30 is actually the more stable oil, you just can't generalize these things. Look at the Pennzoil Platinum PDS sometime...
 
Originally Posted By: CATERHAM


20wt oils are hear to stay and are anything but a "fad". In fact we may soon start seeing the 0W-10 grade. It is already the factory fill on many cars imported from Japan and may even be the factory fill of the OP's Hyundai.


I like the idea of an engine that is designed to run on a 0w10 oil as that would definitely allow for the oil to have a super low viscosity of under 30 cst at 40c, which I think would greatly reduce engine wear for people that do a lot of short trips in colder weather (like my wife does)
 
Originally Posted By: Patman
Originally Posted By: CATERHAM


20wt oils are hear to stay and are anything but a "fad". In fact we may soon start seeing the 0W-10 grade. It is already the factory fill on many cars imported from Japan and may even be the factory fill of the OP's Hyundai.


I like the idea of an engine that is designed to run on a 0w10 oil as that would definitely allow for the oil to have a super low viscosity of under 30 cst at 40c, which I think would greatly reduce engine wear for people that do a lot of short trips in colder weather (like my wife does)



Which begs the question - why haven't "they" made an oil specifically for short-trip drivers? Seems a lot of folks fit this mold.
Could be a great marketing opportunity, as well as one to improve the life of those cars.
 
Originally Posted By: mechtech2
An oil temperature gauge and a chart or two will tell you what oil to use concerning the high temp viscosity.
I mean, if you are into high performance, then you should monitor your oil temps. Too hot, and the 5-20 is not the best choice. How hot is that? Over 220 F, IMO.


I agree, which is why I have oil pressure and/or oil temperature guages in most of my cars.
But what most notice who have installed an oil temp gauge, particularly with a normally aspirated engine, is just how cool their oil temp's tend to remain.
I can tell you from first hand experience it is very difficult to generate high oil temps on the street here in NA.
If the manufacturer spec's a 20wt oil there is no reason to use anything heavier in 99% of street applications.
 
Originally Posted By: PurplePride
Originally Posted By: Patman
Originally Posted By: CATERHAM


20wt oils are hear to stay and are anything but a "fad". In fact we may soon start seeing the 0W-10 grade. It is already the factory fill on many cars imported from Japan and may even be the factory fill of the OP's Hyundai.


I like the idea of an engine that is designed to run on a 0w10 oil as that would definitely allow for the oil to have a super low viscosity of under 30 cst at 40c, which I think would greatly reduce engine wear for people that do a lot of short trips in colder weather (like my wife does)



Which begs the question - why haven't "they" made an oil specifically for short-trip drivers? Seems a lot of folks fit this mold.
Could be a great marketing opportunity, as well as one to improve the life of those cars.


They have PurplePride, and you're now running it in your car.
The Toyota and Honda spec' 0W-20 grade low vis' high VI oils were made specifically to address the lubrication challenges of the part-time engines in hybrid applications. Nothing could be better suited for the short-trip drivers.
 
Originally Posted By: CATERHAM
Originally Posted By: PurplePride
Originally Posted By: Patman
Originally Posted By: CATERHAM


20wt oils are hear to stay and are anything but a "fad". In fact we may soon start seeing the 0W-10 grade. It is already the factory fill on many cars imported from Japan and may even be the factory fill of the OP's Hyundai.


I like the idea of an engine that is designed to run on a 0w10 oil as that would definitely allow for the oil to have a super low viscosity of under 30 cst at 40c, which I think would greatly reduce engine wear for people that do a lot of short trips in colder weather (like my wife does)



Which begs the question - why haven't "they" made an oil specifically for short-trip drivers? Seems a lot of folks fit this mold.
Could be a great marketing opportunity, as well as one to improve the life of those cars.


They have PurplePride, and you're now running it in your car.
The Toyota and Honda spec' 0W-20 grade low vis' high VI oils were made specifically to address the lubrication challenges of the part-time engines in hybrid applications. Nothing could be better suited for the short-trip drivers.


BUT - they need to market it as such! It would make a KILLING! I think so anyway.
I drive 90+% of my miles >10 miles, so it's a not a problem here, but I know lots of folks that do short trips 90% of the time.
I see a hole here that they could fill simply by a marketing campaign.
Then again, it might raise the price of the oil I just got :)
 
Originally Posted By: CATERHAM
Originally Posted By: Panzerman
I would use the 10w30. You are correct on it being a more rugged oil. I use it in my Hemi that is speced for 5w20 and Ive used the 5w20 and the 10w30 and I cant tell any difference. I actually get better fuel milelage on the 10w30. Go figure.I may even try the 15w40, if your manual says that is permittable, that is definentely the grade I would use. 15w40 oil is cheaper, alot more robust, cleaning agents are so much better than any gasoline oil on the market. That is a super tough oil. 10w30 would be the middle of the road approach, but if you are not worried about fuel milelage and want the best protection and clean motor, use the 15w40. Thin oils are the new trend, sorta like a fad for now. Any of the oils will work fine, contrary to popular belief by alot of people on here, there is such little difference in "real life world" performance, your engine will never know the difference.


You live in Florida so I'll forgive you for propogating such utter nonsence.

For all intents and purposes the 10W-30 is a redundant synthetic grade that's made for marketing purposes only. It has has vertually no stability advantages over a 5W-30 syn.

One would be very foolish indeed to use a 15W-40 deisel oil in a 20wt auto application particularily in the winter months. Even at just 32F it's at least 500% thicker.

20wt oils are hear to stay and are anything but a "fad". In fact we may soon start seeing the 0W-10 grade. It is already the factory fill on many cars imported from Japan and may even be the factory fill of the OP's Hyundai.
I live in Florida-NOW, for 6 years, I lived in the Mountains of Pennsyvania, for 35 years. I know all about cold temperatures and oil. How did the world ever get by before the spec of 0w20 oils arise. How do they still seem to function in Europe with most of thier cars specing 5w40 and sometimes 10w60 oils. Regardless to what some will speculate, 30 wieght oils dont turn to a solid below the temps of 32. I can remmember back to using straight 40 weight in Detriot diesel all winter long with no oil related problems, the diesel fuel would gel up and freeze the oil would pump, I know because the Detriots used oil everyday and I would have to pump oil out of a drum in below 0 weather. It pumps.Thin oils are not the re-invention of the wheel. Many if not more vehicles worldwide are operated on 15w40 than 5w20, and they function fine, without excessive wear at start up. Cafe standards are the true reason behind the use of a thin oil, not the reduced wear on the engine at start-up. If this is not the reason, then why do the Europeans call for thicker oil in the same engines as made in the U.S and why do High performance engines such as the Hemi 6.0 and other RT models call for heavier grades. Would it be that the manufactures arent limited by Goverment watchdogs or wishing to provide superior protection for a high performance motor than handing out gas milelage.
 
Sir you are a relic of old school thinking and I salute you.
0W-20 is common in Europe.
What do you think the kinematic viscosity is of a 0W-40 syn with 15,000 miles on it at a temp of 280F? Answer, about the same as a 0W-10 at 180F.
 
Originally Posted By: PurplePride
Originally Posted By: postjeeprcr
Originally Posted By: PurplePride
Since it says 5w20, wouldn't 0w20 be even better, generally speaking?
Unless it's one of those rare dino 0w20s, seems like it should be the choice here.


Dino 0W20?


I've managed to read that Honda makes a non-synth 0w20. Threads on these new oils are few at the moment, but I was surprised to read that as well.
With all I've gathered on BITOG, why would we recommend a 5w20 and not the 0w20? Seems to me that 5w20s can be of lesser quality than 5w30 of the same oils and 0w20s in general?


Honda doesn't make oil. They have an oil made to their specifications, just like Toyota, Ford, GM, Mercedes...etc.
 
Originally Posted By: CATERHAM
Originally Posted By: PurplePride
Originally Posted By: postjeeprcr
Originally Posted By: PurplePride
Since it says 5w20, wouldn't 0w20 be even better, generally speaking?
Unless it's one of those rare dino 0w20s, seems like it should be the choice here.


Dino 0W20?


I've managed to read that Honda makes a non-synth 0w20. Threads on these new oils are few at the moment, but I was surprised to read that as well.
With all I've gathered on BITOG, why would we recommend a 5w20 and not the 0w20? Seems to me that 5w20s can be of lesser quality than 5w30 of the same oils and 0w20s in general?



All 0W-XX oils are at least a GPIII synthetic and that includes the Honda brand 0W-20.
According to Jeff Jetter, American Honda's principal chemist, the Honda brand 0W-20, made for them by Idemitsu in Indiana, is primarily a GPIII based oil.
The reason that some assume it is not a syn' oil is because it's not labelled as such.

With very few exceptions, a 0W-20 will out perform a 5W-20 under all conditions including high temperature protection.


CATERHAM:

Question for you, since it sounds like you've been in touch with them. Why did they go with Idemitsu for their 0w20, when they had worked closely with ExxonMobil and I believe Eneos on their other oils? I'm thinking stuff like HTO-06.....
 
Originally Posted By: OVERK1LL
Originally Posted By: PurplePride
Originally Posted By: postjeeprcr
Originally Posted By: PurplePride
Since it says 5w20, wouldn't 0w20 be even better, generally speaking?
Unless it's one of those rare dino 0w20s, seems like it should be the choice here.


Dino 0W20?


I've managed to read that Honda makes a non-synth 0w20. Threads on these new oils are few at the moment, but I was surprised to read that as well.
With all I've gathered on BITOG, why would we recommend a 5w20 and not the 0w20? Seems to me that 5w20s can be of lesser quality than 5w30 of the same oils and 0w20s in general?


Honda doesn't make oil. They have an oil made to their specifications, just like Toyota, Ford, GM, Mercedes...etc.


Thanks Mr Semantic. I think most people get that.
 
Originally Posted By: PurplePride


Thanks Mr Semantic. I think most people get that.


Just mentioned for clarity. There was a thread the other day where somebody stated with much conviction that "Toyota Oil" was superior to *insert brand-name here*; seemingly oblivious to the fact that Toyota of course doesn't make oil
grin2.gif


I wasn't trying to be crass or rude.
 
Originally Posted By: OVERK1LL
Originally Posted By: PurplePride


Thanks Mr Semantic. I think most people get that.


Just mentioned for clarity. There was a thread the other day where somebody stated with much conviction that "Toyota Oil" was superior to *insert brand-name here*; seemingly oblivious to the fact that Toyota of course doesn't make oil
grin2.gif


I wasn't trying to be crass or rude.


Fair enough - just got back from a workout, so maybe my brain was O2 starved :)
All good. :)

BUT - back to the non-synth 0w20. Are you SURE there's no such thing? I thought so too, until I read a post somewhere where it seemed the person knew this as fact?
 
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