Re: A little Packard History from 1945
Posted by Guscha On 2019/10/13 14:04:01
Quote:
...They make a big version that uses paper towel rolls for big trucks, some have gone 500,000 miles or more without an oil change...
Yes Rusty, but closer inspection reveals, that big trucks are often long-distance trucks and as such they are cold-started 75% to 85% less than cars. And they are driven every day for many hours within the best speed range on the highway by the help of cruise control. And every diesel engine has glow plugs and many trucks have a preheating unit. And truck drivers are professional drivers. And after a couple of 100,000 miles it is usual to refill every once in a while the one or another liter oil and with that the oil gets a continuing refresh.
There is no oil filter which balance the chemical losses of ageing oil.
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