Not sure if it has more value, but if selling on your own and not trading in it should be a easier sell. If you went and looked at two (insert cars here) both the same make and model and year, one had a shoe box full of receipts from everything done except gas, the other had a seller saying it had it done what car would you buy? I keep every receipt, mailing, everything that came with the car in a binder. I have all the paper work from buying it, window sticker, the book the dealer has on the wall that talks about the car and the options, every receipt for everything on the car. I got a mailing for a recall, I kept the letter with the receipt that it was done. 50 years from now it may be worth more than another car without all the documentation, but in 5 when I sell it, someone will say this guy took care of this car, I can see he changed the oil, did the preventive maintenance, had a nail in a tire but got it fixed.