Our Ideal Vacuum Products brand oil IVP-19 is a premium quality rotary vane vacuum pump oil and can be used in most hydrocarbon rotary vane pumps and applications. We recommend that you change your vacuum pump oil at least every 3 months to prolong the life of your vacuum pump. Ideal Vacuum Products IVP-19 vacuum pump oil can be mixed with or used as our substitute for Alcatel Adixen A119, Leybold HE-200, LVO-100, Edwards Ultragrade 15, Ultragrade 19, Varian GP Oil, Welch DuoSeal (100% compatible with each other). Our Ideal Vacuum Products IVP 19 vacuum pump oil is and excellent product for use in: