(10 year old) Mobil 1 EP 0w-20, 9800-mile OCI, 2022 Lexus RX 450H 3.6L 39k.

Joined
May 2, 2023
Messages
18
Location
Missouri
9 Months ago I posted about some old oil I had on the shelf from the great Autozone sales of 2017. You can find that post here. There were a lot of mixed feelings about it. I decide to run it. After 9800 miles on 2014 API SN blend of Mobil 1 EP, it looks like it held up strong. Now I just need to find a use for all the other random weights of oil I purchased then.

Car used was a 2022 Lexus Rx R450H. It's a 3.6L V6 hybrid. Commutes were ~4 miles each direction, and lots of in-town driving, 5 times weekly. There were everal trips to the next city over on this OC at ~400 miles round trip, as well as one large 2200 mile road trip, all hwy.

RX 450H Oil analysis.webp
20231017_194355.webp
 
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Seems to be consistent with your previous run & Si even came down a bit this run. Although the oil seems to have done just fine if oil is too old additives can fall out of suspension. So long as it was shaken up real good and a decade old I think it's just fine. How old is too old oil..I suppose that would depend on the oil/packaging/environment etc. Nice to see another Show Me state member.
 
Seems to be consistent with your previous run & Si even came down a bit this run. Although the oil seems to have done just fine if oil is too old additives can fall out of suspension. So long as it was shaken up real good and a decade old I think it's just fine. How old is too old oil..I suppose that would depend on the oil/packaging/environment etc. Nice to see another Show Me state member.
Halfway through this oil change, it got a fresh engine air filter. Went from the original at 35k to a Wix WA10716.

Cheers from KC.
 
I’m definitely one to say do not use old oil but I cannot argue with the results.
The previous results were done with a 2023 manufactured batch of Mobil 1 EP. I'd describe the conditions of this run as easier. It was from March to September. 3.3% fewer miles on this run. It does look lie the TBN was sufficient but not as impressive as the 3.8 run from the previous.

What's a bit frustrating is the universal averages from Blackstone are based on the 2023 model, which is a 2.5L 4-cylinder, whereas this is a 3.6L V6. I'd love if someone had a link to a report with the hybrid V6.

The filter was a Fram Ultra with synthetic media and wire backing pre redesign for anyone wondering.
 
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The previous results were done with a 2023 manufactured batch of Mobil 1 EP. I'd describe the conditions of this run as easier. It was from March to September. 3.3% fewer miles on this run. It does look lie the TBN was sufficient but not as impressive as the 3.8 run from the previous.

What's a bit frustrating is the universal averages from Blackstone are based on the 2023 model, which is a 2.5L 4-cylinder, whereas this is a 3.6L V6. I'd love if someone had a link to a report with the hybrid V6.

The filter was a Fram Ultra with synthetic media and wire backing pre redesign for anyone wondering.
SN GF-5 vs SP GF-6. The formulation likely changed as well.
 
The previous results were done with a 2023 manufactured batch of Mobil 1 EP. I'd describe the conditions of this run as easier. It was from March to September. 3.3% fewer miles on this run. It does look lie the TBN was sufficient but not as impressive as the 3.8 run from the previous.

What's a bit frustrating is the universal averages from Blackstone are based on the 2023 model, which is a 2.5L 4-cylinder, whereas this is a 3.6L V6. I'd love if someone had a link to a report with the hybrid V6.

The filter was a Fram Ultra with synthetic media and wire backing pre redesign for anyone wondering.
I am not liking the Fe 25ppm at 10k oci. I have a 14 2GR-FE non-hybrid and average 4 to 5 ppm per 5K oci. It has 110k mi using a Fram Ultra.

 
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