quote:Originally posted by Houckster:
Over that 10 year period, Amsoil would have to be installed 10 times and they require a filter change at 6 months (unnecessary in my opinion) to keep the warranty they provide intact. My Ranger uses 5 quarts of oil and the list price is $8.35 for the Series 2000 0W30 which is the oil I'd use if SynLube were not available. Now if you're like me, I'd press for a discount and let's say I can get the price down to $7 a quart. Then there's the filters and their top line filters range from about $9.75 to $28. Let's settle on $10 per filter. That's $55 for each year and that's only if you install it yourself. At the end of 10 years, your costs will be $550 (plus shipping and/or applicable taxes) vs. $195 for SynLube. That's a decent monetary savings of $355 plus the savings in time and the almost complete elimination of waste oil which should not be overlooked. Finally, you can return the oil to SynLube at the end of the oil's service life for a credit towards the purchase of new SynLube.
Regarding your theoretical use of Amsoil oil I can prove you that calculated costs could be lowered. Series 2000 oils are recomended for 35.000 miles use (or one year, whichever comes first) and for reaching mileage "limit" you should use oil anlysis - Amsoil or someone's other. Result is: (at least) just 5 oil changes + 4 oil analysis what means costs almost same as for SynLube. So, SynLube advantages are in handling - oil changes, taking oil samples, sending them, ...