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How much oil does a Northstar engine burn?
Registered. Bottom line: Cadillac says 1000 miles per quart is “normal” oil consumption for the Northstar, and therefore they will take no action to fix it.
Why does my Cadillac burn oil?
Problem Description Our technicians tell us that if you experience excessive oil consumption it may be caused by built up on the piston rings which restricts movement, preventing them from wiping all the oil from the cylinder walls. Oil left behind is then burned during the combustion process.
Do all Northstar engines leak oil?
All Northstar 4.6 engines will eventually experience the same seal failures and oil leaks. All of these engines will experience lower crankcase seal leaks, oil pan leaks, valve cover leaks, and rear main seal leaks as well as leaks from sensors and filter adapters. The gaskets simply will not last forever.
What are the problems with the Northstar engine?
The failures of the head gasket in the Northstar engines caused the engines to run very hot and overheat while driving, which in turn, made the problem worse and get worse faster than it normally would have.
What’s the best oil for Cadillac?
Although it specifies no particular brand,Cadillac recommends Dexos-certified oils that bear the Dexos mark; Dexos is an oil-rating standard used by many automakers. If you plan to drive the car in extreme cold (-29 Celsius/-20 Fahrenheit), use 0W-30 oil.
Do Northstar engines burn oil?
The “Northstar” engine they used in these cars is known for burning oil. That suggests that something is wrong deep inside the engine — most likely bad rings. But if you’re burning a quart every 1,000 miles or more, you’re probably better off just trying to keep it from getting worse quickly.
What size is the Northstar engine?
The Northstar V8 engine family is General Motor’s top-of-the-line luxury power plant. Introduced in 1993 in the Cadillac Allante, Eldorado and Seville STS, the 4.6L 32-valve dual overhead cam all-aluminum V8 engine was a quantum leap forward for U.S. automakers.
Do Cadillac CTS burn oil?
Unfortunately, oil consumption in these engines can be quite large. GM has put out service bulletins which says that engine use up to 1 quart per 2000 miles is perfectly normal.
Why does the Northstar engine overheat?
The thermostat gauges the temperature of the engine to control the flow of coolant into the cylinder block and radiator. A faulty thermostat might not open, meaning coolant won’t flow. This in turn will cause the engine to overheat. If the radiator hose is not hot, the thermostat might need to be replaced.
What kind of oil does a Cadillac Northstar use?
Also, on the oil cap for the engine it says 5w-30 however i heard that the northstar performs better with 10w-30. maybe it’s just a rumour, but anyway, i really take care of my cars in and out and i always use 94 if not 91 octane gasoline.
Can a Northstar 4.6 engine have an oil leak?
All Northstar 4.6 engines will eventually experience the same seal failures and oil leaks. Whether you drive a Deville or a Seville, a DTS or an STS, an XLR or an SRX, and Eldorado or an Allante.
Is it necessary to use synthetic Northstar Oil?
We were told by a Northstar powertrain engineer that using synthetic when its not called for is a waste of money because it is overkill. Many swear by synthetic and feel they are REALLY TAKING CARE of their car if they spend more for oil. Synthetics resistence to thermal breakdown is great but under the conditions we use our cars its not necessary.