Re: [Amc-list] Spring Flush

[Ken Ames <ameskg@xxxxxxxxx>]

"> 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
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