Re: can i turn over a packard motor with diesel instead of oil to clean out oil passages?

Posted by Ernie Vitucci On 2015/9/30 12:02:55

Good Morning all...Valvoline makes an engine flush that comes in one gallon containers. You drain the oil, pour in the flush and idle for 5 to 10 minutes. Drain, change filter, add new oil. I have used this flush for a number of years and had good luck. My 1998 Jeep 5.9 Grand Cherokee just came up on 239,000 miles and ran great on a 950 mile round trip from Scottsdale, Arizona to Los Angeles and San Diego and return last week. I use it at every 3,000 mile oil change and run Mobil 1, 10-30 oil. I use the same oil on my 31 Model A Ford and my 49 Packard, 'Miss Prudence'. When we purchased 'Miss Prudence' we dropped the pan, and opened up the valve train area and cleaned and flushed as best we could. The Packard had 45,000 miles on her when we purchased her and has 48,000 miles now, three years later. She seems quite happy. Ernie