2008-2013 Cadillac CTS General Discussion Discussion, Cadillac CTS 2008 3.6 263HP burns oil in Cadillac CTS Second Generation Forum - 2008-2013; Hello,
What should I do?
My Cadillac CTS 2008 (68000 miles) burns oil. I'm using recommended oil Mobile 1 5w30.
I'm sure you know that lowest point on the dipstick is much different than no oil. You are probably just over a quart low when you get to that point. I bought my 2008 at 16k miles and it burned about 2 quarts between oil changes (about 7000 miles) so you may not be all that far off of the pace - its now settled in at about 1.5 quarts. I do my full oil changes with Mobile 1 and then keep a couple of quarts of Oriley full synthetic around for top-offs. You could switch to Castrol high mileage oil but keep in mind that it is not full synthetic so you may want change the oil a bit more frequently...say every 5k miles.
The CTS V-6 is known to use some oil between changes. Don't panic unless you 1. See white smoke coming out of the tailpipe or 2. You see puddles of oil under the car
So how can I check how much oil my Cadillac burned?
After 2000 miles (not 2500 miles), oil is on the lowest point of dipstick.
After you check it when it's low, fill it until the dipstick reads its full. However much you had to put in is how much it's burned. My guess is you are not as low as you're thinking you are. Probably only a quart to a quart and a half. Don't get too worried about it until you actually know how much you are really burning. Good luck. Keep us posted.
Automobile(s): 2009 CTS4 Blue Diamond AWD, 2015 Sierra Denali 6.2L 8-sp CC
Michigan 'da UP'-Lake Superior
Re: Cadillac CTS 2008 3.6 263HP burns oil
All engines require oil to lubricate and protect the load bearing and internal moving parts from wear including cylinder walls, pistons and piston rings. When a piston moves down its cylinder, a thin film of oil is left on the cylinderwall. During the power stroke, part of this oil layer is consumed in the combustion process. As a result, varying rates of oil consumption are accepted as normal in all engines.
The accepted rate of oil consumption for engines used in the vehicles referenced is 0.946 liter (1 qt) in 3200 km (2000 mi).