2009 Toyota Camry Motorcraft 5W-20 partial syn UOA

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That's a lower TBN than I would've expected. Kind of makes me wish I'd done UOAs earlier in my engine's life, out of curiosity, to see if the early OCIs were harder on the oil.
 
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You have to do 5k mile OCI's to maintain the warranty, don't you? I'd stick with this oil, it has a great add-pack, just stay at 5k mile OCI's.
 

quick_16

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 Originally Posted By: addyguy
You have to do 5k mile OCI's to maintain the warranty, don't you?
Not sure I hope this does better than this after some more miles on engine after all it's a partial synthetic. I could go 7000+ with even cheaper Shell formula 5W-30 oil in the last car and 3.0 V6 Honda. TBN = 0.9 I'm a little disappointed in the low TBN The scary part is I'm at 9,100 OCI mile in my '08 Honda Fit and the Mileage Monitor still says 30%.... I do a lot of engine off gliding (P&G w/ FAS) so it's not 9,100 miles with eng running. I plan to let it eat till 15%, per owner manual and than test it and post results for all to look at.
 
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to keep warranty work with TOYOTA need to change oil / filter every 5,000 miles or less . Also , if 5,000 miles not accumulated in 6 months , needs to be changed . There's a booklet that came with the CAMRY that explains the different warranties and what needs to be done to keep it . Keep all receipts for oil and filter , along with the dates they were performed . This includes air filter , etc..
 
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Seems like the number of UOAs I'm noticing in this forum for MC 5W-20 with low TBNs is increasing.
 
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