Yep they sell the whole range of oils synthetic, mineral, and mineral based synthetically fortified, and in a whole host of weights, and multi grades. Fork oils brake fluids etc,
Yes it’s like having a family member in the local bike shop.
The vans run the 30W-60 for the simple reason of being run on LPG fuel, and the extra heat it produces. And for the other factors of, in 1 day shift the van is on the road from 6.45 am and gets shut down at 5.15pm. During the day it gets shut down 5 times for depot unload and load ups, at ¾ hr time periods. For the rest of the time 6 ¾ hrs it’s either running or idling. 20W-50 just can not cut the mustard, with this kinda torture