Originally Posted by Railrust
Originally Posted by D1dad
I'm convinced some cars just use oil. I purchased my 09 altima with just a few thousand miles on it, changed the oil religiously, every 3500 or so with quality synthetic and either Nissan or Bosch filters. I had it into the dealer from the get go several times for consumption issues, 1/2-3/4 of a quart every 1k. Supposedly this didn't meet nissans excessive consumption. [censored] me off but 10yrs later and 113k it still uses the same amount and runs like a clock. I replaced the plugs at 100k and they looked fine. The tail pipe is extremely sooty so I suspect the factory tune was set to achieve maximum mileage. All that said the only thing ever done was the cvt replaced at 90k but was covered under extended warranty. My car is absoloutely mint but uses oil and always has. I can't sell it because of the consumption so i gave it to my son who now checks the oil every 500 miles. I also just bought an unbelievably clean, 100k, garage kept 08 impala with the 3.9 and fuel management crap from an old lady who had receipts since new from dealer service, every 3k. I changed the oil and drove it to Nashville and back this week, around 1k miles total and it used a half quart.
Wow, that's a lot of oil usuage out of a vehicle from day one, that would have really bothered me too.
The Impala you bought with the active fuel management system will use oil, most of GM's AFM or DOD systems (displacement of demand) use oil. I'm discovering this right now...my truck has used oil since new, maybe around a quart over 5,000 miles. I expect it'll get worse (currently at 37,000 miles). I drive a lot, so I'm not sure how much oil consumption I'll be willing to put up with (I drive 500-600 miles a week). To think I may have to put a quart of Synthetic into an engine every week is not something I think I'll be willing to do. That happened to me with my last car (Lexus LS460), but I was at 178,000 miles before that started happening...at that point it needed $4,000 in other repairs and I was happy to trade it in (the thought of fixing $4,000 worth of parts, and then being stuck with a 178,000 mile car that drinks a quart every 700 miles, didn't appeal to me).
Yeah I found that out. My son in law is a GM tech and he said the v8 was horrible with afm, the v6 wasnt as troublesome. I contribute the half quart to the fact that I switched it over to synthetic, the dealer used bulk 5w30 which I assume was probably some low budget dexos blend. I figured doing 85-90 mph through the foothills of the smokies and a half quart wasn't bad for a thousand miles. I changed it with Quaker state synthetic before I left so I'm hoping it will settle down. If not then my son in law has a 50k motor setting there waiting with no afm and as nice as this car is it's worth it. The old gal I bought it from was so particular about this car she didn't wanna sell it with used tires so had the dealer install a set of $800 Bridgestones on it. I paid $3500 for a car that looked like it darn near came off the showroom floor that spent its winters in homestead Florida. I will say that this was the first time I ever switched a car to synthetic and seen it cause a few drips of oil from somewhere on the garage floor. I think tomorrow I'll change it over to one of the jugs of platinum high mileage I have and see if it corrects that problem.