Wonder why I am having to add so much oil lately? Last oil change was on 3-2-2021 at 144,612 miles, about 5,000 miles since the previous change. But then on 4-2-2021 after only 2,697 miles in 1 month, I had to add a quart. Then on 5-11-2021 after only 881 miles, I had to add another quart.
And finally, on 6-4-2021, today, after only 900 miles (at 149,090, I had to add yet another quart. No leakage, so apparently the motor is simply burning it up. How serious is this, and what might be the cost of repair? –Thanks!
That is quite a large amount of oil being consumed. 3 quarts of oil being burnt in less than 5,000 miles. There would be a considerable amount of blue smoke coming from the exhaust at the very least at start up. Also the catalytic converter would become clogged and no longer perform as needed. Is there a check engine light on? It would be almost impossible for the Air/Fuel ratio sensors to function properly with so much oil passing through.
Should your engine actually need to be replaced you will need to get an estimate from the shop/dealership you are planning to have the work done. The engine size will make a difference in pricing. But lets say it is a 3.5L V6 engine. Just labor time is about 18 hours. Where as the 2.4L engine requires 15 hours labor to replace the engine. Find out the shops labor rate per hour and this should give you a better idea of the cost involved.