Hi Jerry,
I had read that the winter weights perform the same as the straight once up to operating temperature, with the only difference being it would help it flow better upon first start up. Since this engine is not going to be running for long periods for the foreseeable future I thought the winter weight made sense. I also live in a cold climate so wouldn't the thinner start up help oil reach all over more quickly for those short 1-2 minute run sessions?
I am not questioning your advice, just want to learn more myself. Sometimes what I think is the logical conclusion is not always the practical one!
Thanks.
James