I have a 14 Ultra Limited with the catalyst. I have always used Mobil 1 oils in my 3 HD's. I used to run the 15-50 in my 2000 with no problems. I have a stash of the 15-50 and was wondering if it would be ok to use in the 14 even tho it says it has extra zinc for wear protection. Will that hurt the catalyst? It's under warranty for 5 yrs.
Using a high zinc oil in a Harley with catalyst
- Thread starter loneryder
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If it doesn't consume massive amounts of oil it won't poison the cat
Burning oil or excess fuel and carbon, is actually more detrimental to a CAT than leaded fuel.
As mentioned unless it is burning oil there will not be a problem. Cars with cataltic converters ran high zinc oil for over 20 years without massive amounts of dead cats in the days of SH, SJ, and SL oils.
Also...when it comes to protecting my engine or my exhaust system, I am going to protect my engine.
Also...when it comes to protecting my engine or my exhaust system, I am going to protect my engine.
It's not the zinc that will ruin the converter, it's the phosphorous. Phosphorus is what is regulated. Those two together make ZDDP.
http://www.bobistheoilguy.com/forums/ubb...sur#Post3682598
http://www.bobistheoilguy.com/forums/ubb...sur#Post3682598
Originally Posted By: loneryder
Thanks guys. I assume the "increased zinc" comes in the form of ZDDP in that oil. So you guys would use it?
I'm using it in my 2014 Limited. Buddy has 60k on 2010 Limited using Mobile 1 15-50 with no catalyst problems. If your not using oil it not getting to the converter.
Thanks guys. I assume the "increased zinc" comes in the form of ZDDP in that oil. So you guys would use it?
I'm using it in my 2014 Limited. Buddy has 60k on 2010 Limited using Mobile 1 15-50 with no catalyst problems. If your not using oil it not getting to the converter.
Here's a UOA of M1 15/50:
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2361246
Here's VOA of M1 20/50 MC oil:
http://www.bobistheoilguy.com/forums/ubb...n_O#Post3685346
Lots more zinc & phosphorus in the MC oil. You should be fine with the 15/50.
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2361246
Here's VOA of M1 20/50 MC oil:
http://www.bobistheoilguy.com/forums/ubb...n_O#Post3685346
Lots more zinc & phosphorus in the MC oil. You should be fine with the 15/50.
Originally Posted By: SJohnson
Here's a UOA of M1 15/50:
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2361246
Here's VOA of M1 20/50 MC oil:
http://www.bobistheoilguy.com/forums/ubb...n_O#Post3685346
Lots more zinc & phosphorus in the MC oil. You should be fine with the 15/50.
Thanks so much. Great info. I have used that 20-50 quite a bit. Did a uoa on a 2011 LTD after 1 yr and 3000 miles. They said to go at least 5k next run but I don't like leaving it in there for over a year. I'm running HD dino in my 14, still breaking in with 1400 miles.
Here's a UOA of M1 15/50:
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2361246
Here's VOA of M1 20/50 MC oil:
http://www.bobistheoilguy.com/forums/ubb...n_O#Post3685346
Lots more zinc & phosphorus in the MC oil. You should be fine with the 15/50.
Thanks so much. Great info. I have used that 20-50 quite a bit. Did a uoa on a 2011 LTD after 1 yr and 3000 miles. They said to go at least 5k next run but I don't like leaving it in there for over a year. I'm running HD dino in my 14, still breaking in with 1400 miles.
Last edited:
Originally Posted By: loneryder
I have a 14 Ultra Limited with the catalyst. I have always used Mobil 1 oils in my 3 HD's. I used to run the 15-50 in my 2000 with no problems. I have a stash of the 15-50 and was wondering if it would be ok to use in the 14 even tho it says it has extra zinc for wear protection. Will that hurt the catalyst? It's under warranty for 5 yrs.
Remove the cats in 5 years and one day......
I have a 14 Ultra Limited with the catalyst. I have always used Mobil 1 oils in my 3 HD's. I used to run the 15-50 in my 2000 with no problems. I have a stash of the 15-50 and was wondering if it would be ok to use in the 14 even tho it says it has extra zinc for wear protection. Will that hurt the catalyst? It's under warranty for 5 yrs.
Remove the cats in 5 years and one day......
Originally Posted By: Doog
Originally Posted By: loneryder
I have a 14 Ultra Limited with the catalyst. I have always used Mobil 1 oils in my 3 HD's. I used to run the 15-50 in my 2000 with no problems. I have a stash of the 15-50 and was wondering if it would be ok to use in the 14 even tho it says it has extra zinc for wear protection. Will that hurt the catalyst? It's under warranty for 5 yrs.
Remove the cats in 5 years and one day......
I heard that! So far heat hasn't been an issue but I haven't sat in traffic in 90deg. The water cooled heads may have something to do with it. When it gets really hot, the fans blow the heat out around you.
Originally Posted By: loneryder
I have a 14 Ultra Limited with the catalyst. I have always used Mobil 1 oils in my 3 HD's. I used to run the 15-50 in my 2000 with no problems. I have a stash of the 15-50 and was wondering if it would be ok to use in the 14 even tho it says it has extra zinc for wear protection. Will that hurt the catalyst? It's under warranty for 5 yrs.
Remove the cats in 5 years and one day......
I heard that! So far heat hasn't been an issue but I haven't sat in traffic in 90deg. The water cooled heads may have something to do with it. When it gets really hot, the fans blow the heat out around you.
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