Originally Posted by Uregina09
I remember 2015_PSD said the dealer gave him more for his 2010 F150 trade when he showed him the stack of UOA reports. I dont doubt the dealer sweetened the deal to make the sale, but I'm sure the reports showing OCIs of up to 17k miles were shredded immediately. Joe Public doesn't understand or care about UOA reports, but is appalled when oil is changed so infrequently. I know I and many others (not DNewton) would move on to the next vehicle with more regular service records.
Originally Posted by demarpaint
Originally Posted by D1dad
I can't understand why anyone would want to honestly. I've used Mobil 1 for normal service of 7500 miles but couldn't imagine going past manufacturing recommendations just to test a $25 jug of oil. I don't do analysis, to each their own, but I do and always have changed oil according to my owners manual. If the engine uses oil like my current car, than that's on the maker and not me for neglect.
Unless the conditions are perfect and the vehicle is logging 8-10K miles a month I don't see the logic either. And if I were in the market for a used car and I checked service records and saw 10K or greater OCI's I'd pass on that vehicle.
And most car enthusiasts that I know would too.
Trav and I have discussed this a few times, and had a few good laughs in the process. He is what I consider an extremely knowledgeable enthusiast. We both agreed to run, not walk away from those deals. A stack of UOA's are impressive, I have a few myself. The purpose was not to stretch the last possible mile out of an OCI. I was more concerned with finding coolant, poor air filtration, and fuel dilution.