"> One thing I will say is that 20w50 is very heavy oil. Unless you have > loose bearing clearances (like on a race motor), you'll get better gas > mileage and easier cold weather starting with 10w30." ...and synthetics can be in 5W-50, 0W-40, and other wide ranges. Shell makes a 0W-40 that is SJ grade. Usually 10W-30 is the same price as 5W-30 so why not use the 5W. Ken Quoting Matt Haas <mhaas@xxxxxxx>: > > On 3/22/2009 10:16 AM, Armand Eshleman spouted this sage advice: > > I'm seriously thinking of getting the white Javelin operable again for the > > year after it's long winter sleep. The weather has warmed up and most of > the > > snow is gone. We need a couple of good spring rains to clean the winter > > debris off the street, and I will be able to take the car out for a > cruise. > > > > I put Sea Foam in the cylinders and blocked off the carburetor and exhaust > > last fall to keep air movement through the engine to a minimum. I rotated > > the engine over every so often with the belts. I will have to plug in the > > engine heater to get it warmed up before cranking the engine and getting > it > > running because it has 40 weight racing oil in it and the temperatures > > around here are still pretty cool. > > > > I have five quarts of old Red Line 20W50 synthetic lube and two gallons of > > old 20W50 Amsoil synthetic lube. The containers have never been opened. I > > asked an Amsoil representative about using old synthetic and he said it > > would be absolutely OK. He said the synthetic lubricants don't deteriorate > > over time in a sealed container. What I'm thinking of doing is draining > out > > a quart of the Valvoline racing oil that's in the engine now and adding a > > quart of engine flush. I'm hoping that will clean out the old stuff pretty > > good. I've heard that the pan should come off after doing this. I was > > wondering what you guys think. I have religiously changed oil every 2000 > > miles or so since I've owned the car. > > If you're changing oil every 2000 miles, it's unlikely there is much of > a sludge problem. Also, synthetic oils typically have a lot of > detergents in them and will clean the engine pretty well. When I > switched to Mobil One in my last Ram (it had about 20,000 miles on it > when I switched), the first few oil changes (which I did at regular > intervals) got a lot of stuff out of the engine. After all the sludge > was out, I started changing oil every 10,000 miles and it came out > almost as clean as it went in. I would just drain the oil, change the > filter, fill with a synthetic, and not worry about it. > > One thing I will say is that 20w50 is very heavy oil. Unless you have > loose bearing clearances (like on a race motor), you'll get better gas > mileage and easier cold weather starting with 10w30. > > Matt > > -- > mhaas@xxxxxxx > Cincinnati, OH > http://www.mattsoldcars.com > 1967 Rambler American wagon > 1968 Rambler American sedan > ================================================================= > According to a February 2003 survey of Internet holdouts released > by UCLA's Center for Communication Policy, people cite > not having a computer as the No. 1 reason they won't go online. > _______________________________________________ > Amc-list mailing list > Amc-list@xxxxxxxxxxxx > http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list > _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list