Factory OCI limits OR Synthetic actual limits

[wemay]

Hyundai has rather conservative oci limits for the GDI 2.0T, 3k miles severe/5k normal. Considering the universally accepted opinion that 'the rest of the car will die long before a well manitained engine will fail due to oil issues.' Would you extend your oci to more than the 5k mile limit if a UOA validates (to whatever extent it can be seen that way) that your car can reach 7 or 8k mile oci, comfortably?

 

[Eddie]

Also a problem with my 2014 Mazda which requires a synthetic 0w20 oil. 5K and 7.5K uoa to maintain warranty.

 

[JayhawkRoy]

Retain your warranty by using the manufacturer's recommendation. After that, do what you want. For a 5K OCI, I wouldn't be using synthetic; I would go with conventional, unless the manufacturer specifically required synthetic, or its cost is very cheap compared to conventional.

 

[ChrisD46]

It's because of the Direct Injection (GDI) engine ... I would use a synthetic oil with the lowest NOAK rating I could find such as Pennzoil Ultra , Pennzoil Platinum , Mobil 1 , etc. and stick to the 5K OCI stated by Hyundai

 

[JHZR2]

Id be cognizant of warranty until it expires. After that, yes, extension, if based upon good analytical work and a use profile that justifies it, is sound.

 

[wemay]

I was a big proponant of Synthetics for all Turbos back in the day but with the advances in turbo cooling and manufacturers not requiring it in their OM, i went conventional with the Santa Fe for the first 6k miles. Now, a few things have changed my mind (again)... The DI issue concerning deposits, and having a timing chain vs belt. I have read various posts where having a timing chain alone, warrants to some extent, synthetic oil to help prevent stretching. I will maintain the 5k oci with syn. Of course, this is all about choice as the owner's manual does not require synthetics.

 

[salv]

Follow severe service on these motors. No matter what oil is used, it will come out black as night and stinking of fuel at 3500 miles. Hyundai does not build their motors with extended intervals in mind. Hyundai's approach to lower TCO (total cost of ownership) is to have a great warranty, others reduce TCO by recommending extended service intervals.

 

[wemay]

Originally Posted By: salv
Follow severe service on these motors.


I will go 5k with syn and send for a UOA.... take it from there.

 

[ARCOgraphite]

I will be recommended to run the OE filter ONLY. GF5 is spec'd for turbo use, but if I had a small engine stressing in a 2 ton+ vehicle I be running a Euro X-Max or Excellium.

 

[wemay]

Originally Posted By: ARCOgraphite
I will be recommended to run the OE filter ONLY. GF5 is spec'd for turbo use, but if I had a small engine stressing in a 2 ton+ vehicle I be running a Euro X-Max or Excellium.


Actually weighs 3480 lbs. But i get you reasoning.

I'm also not an OEM filter only subscriber either. Unless a TSB comes out saying it is required, i will run K&N, P1, or NapaG. All are trusted and easier to purchase on any given day than the oem (which i confess, is a great filter).

 

[wemay]

Beginning to think Pennz Synblnd is the best compromise at 5k oci. Great protection at modest oci since the warranty doesnt allow more than the 5k limit.

 

[ARCOgraphite]

If its (PSB)dexos1 it should make it (I would hope!).

I still think your curb weight is well over 3500. I cant research as we are blocked at work by Barracuda web filter.

 

[stchman]

Originally Posted By: Eddie
Also a problem with my 2014 Mazda which requires a synthetic 0w20 oil. 5K and 7.5K uoa to maintain warranty.


Mazda requires that you get regular used oil analysis to maintain your warranty? I have a hard time believing that.