Pricey, but supposedly very good. I have the same brand (Ritchie Yellow Jacket) vacuum pump. Probably could have gone with a less costly oil but decided not to since I really don't use a lot. If I had a cheap pump I probably would have used a cheap oil.
Verified purchase: Yes | Condition: New
I purchased this product for a new yellow jacket superevac pump. I just started using the device but, with this oil inside, it seems to work very well (holds good vacuum). I only gave it 4 stars because I haven't used the product long enough to recommend it from lengthy personal experience.
Verified purchase: Yes | Condition: New
Performs well..
Verified purchase: Yes | Condition: New
awsome
Verified purchase: Yes | Condition: New
perfect
Verified purchase: Yes | Condition: New