Ok, to start let me say I am only stating my opinion and asking for opinions..(i know some are very sensitive about their oil)
I run a small repair business as a side job, today I started on a job for a very elder gentlemen who had a 92 XJ. After listening to the never-ending story of how he purchased this vehicle brand new and looking at the mountain of receipts he kept in a file folder behind the spare tire. I learned that he was having a problem with a top end tap or knock at start-up that lasts until he brings the idle up.
I pulled the valve cover to take a look and it was filthy. I mean completely "gooped" up worse than I have ever seen. So I pulled the oil pan and this was just as bad. I began to look closer at this mans repair receipts and found that he was using Quaker State oil every 3k miles. I mixed up kerosene and marvels oil and flushed the motor for almost an hour. I put on a new filter and gaskets, filled with castrol 10 40 and it runs like a champ. Not a single noise from the motor. Anyone have something to say about quaker state?
I run a small repair business as a side job, today I started on a job for a very elder gentlemen who had a 92 XJ. After listening to the never-ending story of how he purchased this vehicle brand new and looking at the mountain of receipts he kept in a file folder behind the spare tire. I learned that he was having a problem with a top end tap or knock at start-up that lasts until he brings the idle up.
I pulled the valve cover to take a look and it was filthy. I mean completely "gooped" up worse than I have ever seen. So I pulled the oil pan and this was just as bad. I began to look closer at this mans repair receipts and found that he was using Quaker State oil every 3k miles. I mixed up kerosene and marvels oil and flushed the motor for almost an hour. I put on a new filter and gaskets, filled with castrol 10 40 and it runs like a champ. Not a single noise from the motor. Anyone have something to say about quaker state?