Kind of invalidates the whole purpose of posting the TSB and the initial questions.Too bad the part about mods wasn’t included in the original post. That changes everything.
Kind of invalidates the whole purpose of posting the TSB and the initial questions.Too bad the part about mods wasn’t included in the original post. That changes everything.
I apologize for that, wasn't trying to be misleading. It still doesn't change the fact that Kia keeps changing their recommendations and would using a 50 weight oil do more harm or good. I'm just looking for a safe way to reduce the oil consumption.Kind of invalidates the whole purpose of posting the TSB and the initial questions.
Appreciate your help. Which oil would you recommend for my situation?Maybe dig through stingerforum.org and sift through as much nonsense as you can. To my knowledge, the V6 is wholly unchanged since launch, minus a bit of ECU code and the valved mufflers. As already suggested, try some different oils and see if consumption rates change and definitely go with something HTHS 3.5+.
You can try this:I apologize for that, wasn't trying to be misleading. It still doesn't change the fact that Kia keeps changing their recommendations and would using a 50 weight oil do more harm or good. I'm just looking for a safe way to reduce the oil consumption.
Appreciate your help. Which oil would you recommend for my situation?
Doesn't it basically say that you can use a higher viscosity?
There are all somewhat related in most cases, but the best you can glean from the oil spec data sheets is HTHS viscosity. No oil makers actually publishes HTFS viscosity data.It is HTFS you need to maintain MOFT not KV100 viscosity.
No, my understanding of the graph shows 0w-20 only. Which is what I will use. I have a nice supply of it that I use on my other vehicles.Doesn't it basically say that you can use a higher viscosity?
The note at the bottom of the page gives the impression that the KIA engineers know all about viscosity, film thickness/MOFT and engine protection, but then buckle due to CAFE when they state the very last sentence which gives you one viscosity to choose from.At least they recommend 5w-30 for you. The 2023 Sportage list just 0w-20.
Read the paragraph,No, my understanding of the graph shows 0w-20 only. Which is what I will use. I have a nice supply of it that I use on my other vehicles.
The paragraph concludes that you're only to use what's on the chart.Read the paragraph,
Yeah, that's just stupid. They say "refer to the chart" but there is only one viscosity on there.The paragraph concludes that you're only to use what's on the chart.
What was the oil consumption history before all the mods took place? If you're running more boost I'd think that has some bearing on oil consumption. You see an increase in catch-can oil volume after the boost was dialed up?
Again a UOA does not compare wear between oils. It’s not the tool for it and it is not capable of doing that.I guess I could run a 50 weight oil and see if there is a reduction in oil consumption. Send it out for UOA to check wear metals. I have read that thicker oils may interfere with the CVVT hydraulic system. And thicker oils may not lubricant a modern engine as well due to tighter tolerances. Just trying to avoid engine damage.
Switched to Motul xcess 8100 5w40 as recommended by many tuned Stinger owners. Oil consumption slowed to the point that none had to be added. OC was done at 4.4k miles. I had upgraded to a more aggressive ECU tune while using this oil. Even with a more aggressive ECU tune I didn't have to add any oil.
Then came the high flow downpipes and with them oil consumption. I switched to PPE 5w40 because it carries a API SP rating and Motul only carries a SN rating. I can't say if less oil was consumed with Motul after the downpipe install. Because I changed to PPE a couple hundred miles after installing the downpipe.
Then came the high flow downpipes and with them oil consumption. I switched to PPE 5w40 because it carries a API SP rating and Motul only carries a SN rating. I can't say if less oil was consumed with Motul after the downpipe install. Because I changed to PPE a couple hundred miles after installing the downpipe.
Looks like I need to do some trial and error to see which oil suits my engines needs best. Motul has a 5w30 with SP rating. When the Stinger was brand new I used M1 and then M1EP. I noticed a lot of soot around the exhaust tips. All the soot kinda turned me off of M1 products. I switched to Total Quartz because that is what Kia recommends and the levels of soot was definitely reduced. Thanks for the advice. Stupid question, what are m/c oils?Like I mentioned earlier, that engine may not like certain oils. My Hayabusa use to noticeably burn Mobil 1 10W-40 m/c oil, but never any other 10W-40 m/c oils. All I could conclude is the engine just didn't sit well with Mobil 1 m/c oil.
You are making multiple changes which makes it hard to determine what's going on. Does Motul now have an API SN Plus or SP rated oil in a viscosity you could use?