We suggest YOU use UPS to save time, along with the fact that it is trackable in case it gets lost.. FOR BOAT/MOTOR/YACHT owners: the $19.05 oil analysis kit is recommended along with the $35 "thief" to enable proper sampling in boat engine applications. Do NOT capture the sample with an electric oil change pump! Call if you have questions..... Oil Analysis Kit Spectrographic: Note: Does NOT include TBN) $16.55 Diesel Fuel Analysis kit (NOT for Biodiesel) $75.53 THIEF for capturing oil Samples without changing oil! (recommended for boat engine sampling) Regular price: $45.00 Sale price: $35.00 © 2004 AVLubricants - ExxonMobil Distributor Specializing In Hard To Find Products