Recently purchased a 2005 Cadillac Escalade (6.0L AWD) with 170k miles on it. The engine runs like new with no apparent problems. The service records indicates that this vehicle has been ran on conventional oil (Havoline, Castrol GTX , VWB) with most of the oil changes performed at Walmart and some at Tire outlets. The ones at Walmart generally used 1qt of Lucas synthetic oil stabalizer.The owners manual calls for 5w30 GM6094M.
The vehicle is not being used as a daily driver. When it is driven, it is mostly diven on 70 miles trips (one way) at highways speeds of 78mph. Not driven hard. Currently I am averaging 2000 miles every 6 months. Not currently towing anything with vehicle.
Performed oil analysis on oil that was in engine upon time of purchase. Wears metals and oil looked great. Here are Blackstone Comments:
Thanks for the notes. Buying a used car is always a gamble, but this one might pay off for you. This 6.0L GM engine is making less metal than we see on average from them. That might be due in part to a shorter oil run than the average interval of about 4,700 miles, but low wear isn't a problem no matter the reason for it. Sodium can show coolant, but it looks more like oil additive in this case. We wouldn't worry about it if the engine isn't losing anti-freeze. The viscosity is close to the 5W/30 range, and no excess fuel was found. Air/oil filtration appear to be in good shape.
Currently I am running the Havoline 10w30HM SN conventional. Thinking of doing 6 month oil change intervals with this oil or either Castrol GTX HM. I do like the Havoline 6qt smart change box for $14.97 at Walmart plus it is the exact amount of oil needed at oil change. Is this oil adequate? It is not mentioned alot.
Any recommendations on other oils/oil change interval?
Thanks
The vehicle is not being used as a daily driver. When it is driven, it is mostly diven on 70 miles trips (one way) at highways speeds of 78mph. Not driven hard. Currently I am averaging 2000 miles every 6 months. Not currently towing anything with vehicle.
Performed oil analysis on oil that was in engine upon time of purchase. Wears metals and oil looked great. Here are Blackstone Comments:
Thanks for the notes. Buying a used car is always a gamble, but this one might pay off for you. This 6.0L GM engine is making less metal than we see on average from them. That might be due in part to a shorter oil run than the average interval of about 4,700 miles, but low wear isn't a problem no matter the reason for it. Sodium can show coolant, but it looks more like oil additive in this case. We wouldn't worry about it if the engine isn't losing anti-freeze. The viscosity is close to the 5W/30 range, and no excess fuel was found. Air/oil filtration appear to be in good shape.
Currently I am running the Havoline 10w30HM SN conventional. Thinking of doing 6 month oil change intervals with this oil or either Castrol GTX HM. I do like the Havoline 6qt smart change box for $14.97 at Walmart plus it is the exact amount of oil needed at oil change. Is this oil adequate? It is not mentioned alot.
Any recommendations on other oils/oil change interval?
Thanks