Not that you should be throwing money away (and I don't consider this to be frivolous spending), but I really don't see how someone who can afford such a car is going to sweat over this smallish sum of money. It'll take 25 fillups (nearly 6 months by your estimates) for this number to even approach $100, which is a good chunk of change. I'll bet there are a dozen other places where you can carve $100 out of your budget over 6 months and make it a non-issue.

If the car runs fine on the less expensive stuff and doesn't break, great, you've managed to save $4 a week. If it does break, how many $4 weeks will it take for you to pay for it?

Are you a gambling man?

_________________
Matt in Cleveland
My 1941 Buick Century restoration



Mine:
2004 allroad 2.7T Tip
Burgudy Pearl/Platinum+Saber Leather
Premium
Cold Weather
Bose + XM
Parktronic
+ some other stuff I don't know anything about

Fidget's:
2002 TTQR 6-speed
Nimbus Gray/Baseball Leather
Navigation
Xenons
Bose
Heated Seats