I just bought this Amazon oil transfer pump small pump for filling oil tanks in cars off of Amazon. Waiting to see how it works, I can update once I use it if you’d like! I have the same problem with using cream but I love it, so I thought I would try this out before converting.

I've used this one from Amazon. Same as yours? https://www.amazon.com/gp/product/B07DTS8N7P/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1