Decisions Decisions what to pick

Status
Not open for further replies.
Joined
Mar 24, 2008
Messages
119
Location
Phoenix, AZ
i have a 2003 Hyundai Sonata with a 2.4l and for my climate 10w40 or 15w40 or 20w40 and i cannot decide on HDEO (DELO or Rotella) or PCMO (Castrol HM, Pennz HM or Valv HM) i prefer the hm over standard cause its 110*F here most of the time during summer so what are the pros/cons of them and you recomendation plz
 
Pennz has an edge around here it seems.
Is you engine 'high mileage'?
Either HDEO will work fine.
Which is easier to find and which can you buy at the best prices?
My 2¢
 
well its got 90k miles and a slight oil weep that went away when i used delo last summer but i am wondering what's best in the super hot heat here in az (hence the HM for the higher viscosity) and brand is no issue with me
 
Last edited:
Valvoline MaxLife 10w30.

You don't really need a 40 weight oil in that motor, it doesn't run that hot and a Sonata is not a car typically driven real hard.

10W-30 will hold up well, the MaxLife is a little thicker oil, and it has the seal conditioner in it.
 
well i sit on the I17 & I10 & L202 in stop and go for 45min to 1hr stop and go and the owners man states 40grade for that temp range but i have never had a prob with a 30grade oil in other vehicles. i was just following the book but just cause its in black and white doesn't mean i can't question it
 
I agree with MGregoir. You don't really need a 40-weight, you're just sacrificing gas mileage. Just use a 5w30 or 10w30 and call it a day
55.gif
If it really bothers you, get a UOA after 3,000 miles and see how the oil is holding up in your climate. Last year I took a road trip and got caught in stop-and-go traffic for hours and hours in 90-100F temperatures with Havoline 5w30, which actually runs very thin and my UOA came back excellent.
 
Last edited:
Originally Posted By: brandontyler65
well i sit on the I17 & I10 & L202 in stop and go for 45min to 1hr stop and go and the owners man states 40grade for that temp range but i have never had a prob with a 30grade oil in other vehicles. i was just following the book but just cause its in black and white doesn't mean i can't question it


30 will probably be OK, but keep in mind that in your summer climate, the 40 will be as thin as 30 is in the Alberta and Michigan.

40 is a bit safer for your summer climate and just maybe Hyundai knows something about their engines.

A 5W-40 syn would give you reasonable economy during warmup too.
 
lol there is no warm up its 95*F+ at night and morning so its just HOT. lol if any of you have been to phoenix during summer you would know how hot it is all the time for 9 months out of the year
 
Originally Posted By: brandontyler65
lol there is no warm up its 95*F+ at night and morning so its just HOT. lol if any of you have been to phoenix during summer you would know how hot it is all the time for 9 months out of the year


No kidding. I've only been there once but it was incredibly hot. We spent a couple of days in Tucson and the day we left we left during the night due to a lack of a/c in the car. We headed north and when we went through Pheonix it was 5:30 a.m., the sun was just coming up and it was 95 deg F already.

If you aren't going withe a synthetic then I'd probably go with the 15w40 HDEO. It should be more shear stable due to the smaller viscosity spread. Sounds like whatever you used last year was helpful with your oil weep as well so why not go back to it? I assume it was the 15w40 Delo?
 
Last edited:
nothing wrong with running a 5w-40 oil, which is what Id use if I wanted to go a bit heavier.

Ambient temperatures may effect cooling capacity a bit, but unless youre driving like you stole it, the oil temps are likely still OK. That said, if the manual suggests a 40wt for your conditions, then why not?

Rotella syn 5w-40 or schaeffer's 5w-40 would be my two picks for quality oils at reasonable prices. I still would venture toward the thinner at startup end, a 15w-, while likely a non-issue, still can be slower to pump up than a 5w-. Not anissue on big rigs where the engines are onnearly constantly, but I prefer a bit more surity that Ill have quick pumping at any conditions.

Sut all of that said, I cant find fault with you wanting to run delo 15w40 either... I would suggest you do some UOAs to see what you have going on...

JMH
 
Originally Posted By: WishIhadatruck
Originally Posted By: brandontyler65
lol there is no warm up its 95*F+ at night and morning so its just HOT. lol if any of you have been to phoenix during summer you would know how hot it is all the time for 9 months out of the year


No kidding. I've only been there once but it was incredibly hot. We spent a couple of days in Tucson and the day we left we left during the night due to a lack of a/c in the car. We headed north and when we went through Pheonix it was 5:30 a.m., the sun was just coming up and it was 95 deg F already.

If you aren't going withe a synthetic then I'd probably go with the 15w40 HDEO. It should be more shear stable due to the smaller viscosity spread. Sounds like whatever you used last year was helpful with your oil weep as well so why not go back to it? I assume it was the 15w40 Delo?


lol yeah it sucks i want to put R-414b in the A/C aswell. i like delo and rotella cause its cheap and i am a college student so it works well and hold up good but i wanted to ask and see if there was anything better that i could use thats not super spendy. and i pulled the valve cover off and it it was super clean inside aswell
 
I'd suggest Maxlife blend 10w30. Since it's a blend it likely needs few VIIs and is therefore less likely to shear under high temperature/high stress conditions, and as noted the Maxlife oils are a bit on the heavy side to begin with. Those two factors will probably be enough to compensate for the slightly higher oil temperatures you will see compared to normal summer temps elsewhere. The seal conditioners may help with your seep, as well.

My second choice would be Maxlife 10W-40.
 
Status
Not open for further replies.
Back
Top Bottom