Originally Posted By: ftsservice
Originally Posted By: slalom44
Gee, that's nice but you're comparing apples to oranges. You don't have my car, so you can't compare your costs to mine. You apparently have a smaller sump and don't consume as much oil as I do so any comparison is meaningless.
According to the S2000 manual the vehicle takes 5.1 quarts, likely more with your setup. My F150 takes 7 quarts. Since I buy oil on sale, those 7 quarts are pretty cheap (about 3/4's quart stays in every other change since I change the filter every other change).
The oil consumption, I don't know if that's meaningless since I don't know naturally aspirated S2000 oil consumption rates with shelf brands verses Amsoil. Shelf brand synthetics have not resulted in any meaningful oil consumption with my supercharger (not measurable at the dip stick). How much of your oil consumption is due to Amsoil, 30000+ mile OCIs or sloppy engine tolerances... I don't have that data.
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And I didn't give you my actual costs, but the current costs. I have actually paid significantly less than $25 per 5000 miles over the years since prices were much lower in the past.
I believe most people paid significantly lower prices when oil prices were lower in the past, including myself.
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I'd wager he'd see similar results with a high OCI off-the-shelf synthetic etc. using the same pre-lube setup under the same driving conditions. Great. I'll take that wager. How much you wanna bet? If you searched long enough you will find that no off-the-shelf oil comes close to holding TBN as well as Amsoil. None. And if you're comparing it to Mobil 1, I can tell you it isn't nearly as shear stable. I can dig up hundreds of UOAs showing that it shears out of grade in far shorter OCIs.
The UOAs are meaningless with adding nearly double the oil over the life of the OCI. Apples to apples, the wager would require me draining out 90% of the oil and replacing it with fresh oil the UOAs in order to mimic your oil burner with my non-oil burner. At what mileage interval was the last batch of fresh oil added to your Honda?
Another apples to apples comparison would be for you to run shelf brand in the S2000, change it at equal cost intervals and do a UOA comparisons based on that. Cost to cost I doubt you're going to see better UOAs.
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You sound convinced that you're saving money. Great. Whatever makes you feel happy. But comparing your costs on your car with my costs and implying I'm spending more with my setup is very misleading.
Isn't any implication that Amsoil is good for a 35000 OCI when almost all the oil has been replaced also very misleading?
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And if you get any UOAs done, don't forget to add that to your total cost.
So far my UOA costs are minuscule ($0) because I get them for free. I wouldn't pay for one. For the most part they seem to be for bragging rights and "feel" good factor, as are boutique oils. What my UOAs have shown me is that I don't need UOAs.
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And I'll gladly bet that my engine will last longer than yours.
That's an entirely different debate, based on how its used, whether or not one considers burning so much oil is a good indicator of lasting quality, how the vehicle is maintained and a variety of other factors since oil related failures are rare when using correct spec'd synthetic or conventional oils.
Amsoil is also an off-the-shelf oil. I can go to Canadian Tire and buy some Amsoil...right next to RedLine actually... You are buying WAY too much into the BITOG-forum members that *think* they "get-it-but-don't" mantra.