Running strait 40W diesel oil is going to be the best thing for it. ALL the oil you buy now is for new engines and the specks on the crawler engine new are twice as much is a new one now, + 60 years of ware means you need thicker oil. It would not bother me to us it and maybe a bottle of STP per gallon of oil in it. You know as well as I do that 30 years ago strait 30W was thick not like it is now, Now its like 10W-40 use to be. I would bet that if you have a book for the crawler it says to run strait 30W when it was new. New engines have very tight tolerances and don't need that thick old oil instead them use 5W-20 that's thin. I don't want to get anything started so I will leave it at that. Bandit
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Today's Featured Article - An AC Model M Crawler - by Anthony West. Neil Atkins is a man in his late thirties, a mild and patient character who talks fondly of his farming heritage. He farms around a hundred and fifty acres of arable land, in a village called Southam, located just outside Leamington Spa in Warwickshire. The soil is a rich dark brown and is well looked after. unlike some areas in the midlands it is also fairly flat, broken only by hedgerows and the occasional valley and brook. A copse of wildbreaking silver birch and oak trees surround the top si
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