Snwwlkr7
New member
Here is my experience with synthetic oil.
I have a Jeep Cherokee that I've just retired with 258K miles. At about 200K I decided she had been so good that I would start running synthetic oil in her. So I changed the oil to Mobil 1 full synthetic and new filter. Almost immediately it started a very noticeable almost loud ticking sound from the motor. After a few hundred miles I said screw this, drained the oil, new filter and went back with the Castrol GTX I had used for the last 50K miles. The ticking went away shortly after. Now at 258K the motor still seems to have many miles left but unfortunately the vehicle overall just has to many little problems. Why did it start ticking? I have no idea. I do know that 258K on conventional oil is hard to argue with.
After that experience I'm a little afraid to put synthetic in a high miles vehicle and will not be using synthetic in my current high miles 4runner. That said I do run synthetic in my Yamaha FZ6 (600cc) motorcycle that only has 3500 miles.
I have a Jeep Cherokee that I've just retired with 258K miles. At about 200K I decided she had been so good that I would start running synthetic oil in her. So I changed the oil to Mobil 1 full synthetic and new filter. Almost immediately it started a very noticeable almost loud ticking sound from the motor. After a few hundred miles I said screw this, drained the oil, new filter and went back with the Castrol GTX I had used for the last 50K miles. The ticking went away shortly after. Now at 258K the motor still seems to have many miles left but unfortunately the vehicle overall just has to many little problems. Why did it start ticking? I have no idea. I do know that 258K on conventional oil is hard to argue with.
After that experience I'm a little afraid to put synthetic in a high miles vehicle and will not be using synthetic in my current high miles 4runner. That said I do run synthetic in my Yamaha FZ6 (600cc) motorcycle that only has 3500 miles.
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