Hi Everyone. I am new to the forums and fairly new to doing UOI's and reading them. I just wanted to share my latest UOA on my 2025 Ram 1500 with the 3L Twin Turbo, standard output engine. I’ve been running Kirkland 0W-20 full synthetic since the factory fill, with early OCIs at 1.5k and 3.5k miles. Everything looks healthy so far (I think), so I plan to stick with Kirkland until the data tells me otherwise. My next sample will be at 8,500 miles (about 5k on this oil).
2025 Ram 1500 3L I6 so; Kirkland 0w20
- Thread starter UGASpike
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Realizing I’m off point here… what’s your early impression of the Ram and Hurricane engine?
So far I love it and have been trouble free. My last truck was a 2020 5.7 w/ etorque and I haven’t missed it at all power wise. Now exhaust notes that’s another story lol.
Am I missing it or does Wix not test for fuel regarding contaminants?
Having a direct injection twin turbo, I'd want fuel dilution included.
Having a direct injection twin turbo, I'd want fuel dilution included.
Should be standard fare these days..right.
ALS Tribology, the testing laboratory, normally go by viscosity drop & anything that represents 4% or less will be reported as 1% (Visc/Flash Method). They also claimed fuel dilution testing is geared more towards diesel engines...not sure what they're getting at there.
They will test via Fuel Dilution by Gas Chromatography if 4.01% or more fuel. There are two ALS labs that have GC testing capability. Send your sample to Cleveland or Atlanta with a GC test request. No guarantees though. Those two are the only ALS labs able to do that testing. I guess that's why they don't include it as standard since they don't have testing capability at all locations.
This sample Was sent to ATL location. From my understanding, FD simply affects the viscosity and base/oxidation numbers.. so really that is all I need to look at right?
I use Wix simply because I can pick them up locally at O’Reillys.
I hand calculate and average 20 around town. Few ticks up from my 5.7.
Viscosity is somewhat a shot in the dark. When it comes to UOA & if you have a known fuel diluting engine you'd want to get that GC fuel test done. However, I have no idea about these engines in the Ram's. There are several here that may not be worried about that sort of thing. I've used a few of those WIX tests before w/no reading but there are other companies that can give you those results for probably not much more. It's totally whatever information you want to use. Fuel dilution is important & IMO you're already using a 20 grade oil so it's not much of a buffer at 5k or more miles. Interestingly, I've tested my Volvo a few times & quit paying the extra money once I concluded FD was low. Maybe test it once in a while? Just thinking out loud, that's all.
It would be interesting to hear if they're willing to GC fuel test your sample or not.
I will look into asking if they would do it or what they would charge. The kit I pay is already as much as an oil analyzers kit so I may as well switch to see that information.
I appreciate all of the comments and help!
I appreciate all of the comments and help!
I will look at changing viscosity once I establish a wear trend. Looks like the 0w20 is doing a great job so far but that was only over 2k miles. I will probably look at 5w30 or 0w30 since it would be a slight variation. There are quite a few differences between the HO and SO.
Unfortunately, OA Is not exactly the case there either. The standard kit HERE just does a viscosity estimation regarding fuel if viscosity is not low enough. If viscosity is more than one lower centistoke from the SAE midpoint then they'll test via GC fuel method.
Our laboratory will report fuel dilution by two methods. The first method will be an estimate based on the viscosity result. If the viscosity has not dropped further than one centistoke from the midpoint of the SAE grade identified for the sample, an estimate of <1% fuel will be reported. However, if the viscosity has dropped further than one centistoke, the sample is then tested for fuel dilution using Gas Chromatography (GC) method ASTM D7593 for an exact percentage of fuel. The unleaded gasoline fuel dilution method by GC is calibrated up to 5%. If the GC registers a result higher than 5%, a result of >5% will be reported. Exact percentages above 5% cannot be reported due to the calibration limits.
You might call to ask how much it would be to add that to your test.
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Looking good! Kirkland- the champion of oils, strikes again. Please post your updated used oil analysis and thanks for sharing.
I have always put a note in with my sample: "Please use gas chromatography for fuel% regardless of oil viscosity." and they seem to honor that request every time.
That is great to hear! One of my labs is charging me $16 more to test GC! The good thing about OA/Polaris is that all of their labs are capable of testing via GC method so wherever it goes doesn't really matter. Which one do you send yours to?
The kits I buy from Amsoil come with UPS return labels pre-addressed to their Indiana address.
Awesome! Happy to hear they're listening to your requests.
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