04-02-2020, 11:07 AM
As commented above it really needs to be oil not grease. There are a number of products available that are considerably thicker than EP140. There are steering lubes from Penrite, as Hugh mentioned, and Millers. I use an SAE250 gear oil from Westway who a useful supplier of all the more obscure oils we need for our vintage cars.
https://www.ebay.co.uk/itm/111746417158
https://www.ebay.co.uk/itm/111746417158
Suffolk, UK
1925 Chummy
1934 Box
1925 Chummy
1934 Box