Recently performed a used oil analysis on a 2022 Disco P360 which showed a high level of manganese (all else looks good). Car has ~25k total miles and ~5k miles on the used oil. Might be a long shot, but has anyone else seen this or experienced something similar? Any idea what components in the engine are made using manganese? Car operates fine and nothing to indicate a problem.

 

Do you use any fuel additive?

Have you been doing 5K oil changes?

What oil are you using?

 

Thanks. Been doing oil changes at the dealer roughly every 5-6k miles. They use the Castrol 0W-20 with STJLR.03.5006 spec but have been adding BG Advanced Formula MOA (which could do without)

 

I would skip the additive.

How many oil analysis have you done? If only one, drop the additive and test again.

Your golden on oil and change intervals.

Keep us posted.

 

This was the first. Have used UOA a lot on an older car but had an extra kit so thought to test the Disco on a whim. Was surprised by the results. Will test again without the oil additive (didn’t ask for it - seems like a lot of dealers push the BG products in my area). They also put in BG 44K fuel system cleaner. Will keep that but drop the oil analysis to keep it to one variable and see what happens. Depending on results will drop both and test again after that.

Thanks. Will update.

 

I know Mn can be in fuel additives, or rings/liner wear. I would imagine if it's liner wear, your Al/Fe/other metals PPM would spike.The BG MOA doesn't show any Mn in the VOA, but the formulation may have changed? Can you post your UOA?


I would cross post this to the BITOG forums.

 

I would have thought the same thing but seems to me not to be the case. I haven't seen a VOA on BG MOA but, FWIW, did a UOA on another car that also had it and didn't get the same Mn result. The only fuel additive used is BG 44K.

Attached UOA. Will do.