Here it is:
https://www.amazon.com/Blitz-05032-Super-Plastic-Funnel/dp/B00004X140
Has a little neck down at the end, fits tightly OVER the dipstick tube.
https://www.amazon.com/Blitz-05032-Super-Plastic-Funnel/dp/B00004X140
Has a little neck down at the end, fits tightly OVER the dipstick tube.