My aunts car is horrible- and its her fault. The car currently has no noticable engine problems, but first some things you should know. The car has a bad oil leak, i've replaced everything that i could myself, with experience from only 16 years of life. I've replaced the oil pan gasket, which was leaking, and the oil pan itself, which had a dent. I replaced the valve cover gasket which was leaking. I replaced the PCV valve. finally- i told her i didn't know what the heck was causing the leak. Took the car to a shop- they said the head gasket was bad. I didn't buy it- but we replaced it anyway. they replaced a whole bunch of other stuff- many shops- leak cannot be diagnosed. Any way- i told her today- how often do you check your oil? she says like a couple of months i ask how many and she replies a year. I just stare at her, and i say go check your oil, she tells me to do it, so i say its your engine and go replace an ignition coil on my car. She comes out a minute later, and says ' i think theres something wrong wtih the dip stick' i check the stick, its BURNT and there is NO oil PERiOD on it. nothing, nada zilch, menem. So i take a good look at her, and i see just stupidity. I open the engine cover cap, and the toyota enging- you can look straight down into it, and the engine was burnt, sludged, horrible junkyard condition. I take another good look at her. she says ' think we better go buy some oil huh?' im like yea as i shake my head in pity. this is where i really get ticked off- we go to discount auto, and i say, look theres still gotta be some oil, im going to run some seafoam through it, for tomorrow, we'll run some autozone oil for today, and change it tomorrow with valvoline max life. She insists ' no i wont change the oil, ill just add some new oil to it.' I plead with her- i say please let me drain the oil, and use a new filter and some maxlife. she refuses. i argue for 10 minutes and finally i just say its your enine do what you want with it. So shes like OK- ill use a good oil then so the engine will be in good shape. I look at her again- i tell her to buy the cheapest stuff. Shes like no ill just buy the max life- i say look just buy the cheap stuff its all good- and i explain to her API seal ratings- which i am sure was in one ear out the other. so long story short- we buy the discount auto oil, and put in 4 quarts. The engine has 95,xxx miles on it. I know it won't last long- the engine has just seen to much- its been runing like this for how long- i replaced the *copper* plugs she had in the car today, even though this speific 16v toyota engine requires Platinum. the coppers had about 60k on them- never replaced since it left the lot, and were extremely hard to get off. i cleaned the throttle body for her, and installed a new accelerator cable. I had all the stuff laying around, she wouldn't of even bought it had i not had the stuff- not even a thank you. How long do you guys expect this engine to last.