Any chance you can tell me where you found that info? And thank you
I looked high and low this morning for the exact article and could not find it. My searches are turning up about the same info I read on the Chrysler engineers article. Which was close to this:
Industry Standards for Normal Engine Oil Consumption:
Mileage below 50,000 miles / 80,000 kilometers: Normal oil consumption is one quart for each 1,000 miles driven / one litre for every 1600 km's driven.
Mileage above 50,000 miles / 80,000 kilometers: Normal oil consumption is one quart for each 750 miles driven / one litre for every 1200 km's driven.
Oil consumption can vary, in each vehicle, due to many different circumstances. Some of the following are examples under which oil consumption may increase on a vehicle:
1. Age and mileage due to normal engine wear.
2. During engine break-in time, typically up to about 7500 miles
3. During severe service use such as heavy loading, towing, off road, etc.
4. Sustained high speed driving.
5. If there is a failure to comply with recommended oil type and viscosity ratings as outlined in the owners manual.
In order for excessive oil consumption to be determined, a supervised oil consumption test must be performed by the dealership, and an evaluation made.
Edmunds states:A quart of oil every 3,000 miles is quite within acceptable engineering limits for a modern engine with some miles on it, and it isn't indicative of any problem; in fact, burning a little oil is probably good for the engine, as it tends to lubricate the valve stem area.
It would be more harmful to not check the oil level than to burn a quart every 3000 miles.
Some very exotic cars will burn a quart of oil every 3,000 miles right out of the box.
They all sound about the same!! Sorry I cant find the article I ref to.