There are two models of LiquiVac Oil Change Systems. The Small Engine Model which as named is for well suited for small engines. It has a 3 quart capacity.
The second LiquiVac is called the Large Engine/Project Model. It is designed for larger engines such as boats, cars, and trucks. And, it perfect for those hard to access drain plugs, because with the LiquiVac you vacuum out the oil through the dipstick tube. Plus, it also is great for small engines too. It has large 8 quart capacity.