SwimmingRiddles:
You can’t go comparing an '89 Tempo and a '92 Tercel in terms of reliability. I know whereof I speak, particularly with regard to the Tempo (I had the misfortune of owning an '88 Tempo for several years). Properly maintained, the Tercel if brought into good working order now will probably provide another 100K miles with minimal major repairs. Properly maintained, the Tempo will almost definitely require one or more new transmissions, not to mention new motor mounts (if they haven’t already been replaced) and a variety of other major items. Faced with having another Tempo and making this sort of decision, I’d ditch the Tempo and make a lateral or downward move into something older but more reliable, starting two new personal savings funds – one for maintenance and repairs, and to buy the next vehicle. In my case, I bought a new Honda Civic when the third tranny in the Tempo croaked, but it was feasible for me to do so by that time.
Also, leasing anything, but especially an automobile, is probably the worst financial decision most people can make. Unless you’re a real estate agent or an outside sales rep who regularly travels with clients and therefore must have a new vehicle every year or two, leasing is financial suicide. It may seem like a good idea at the time, what with this low, low monthly payment, but in the end you end up with no equity in a vehicle that is worth less than the amount still owed the leasing company, plus being hit for excess mileage, excess wear or damage, etc. You either end up paying a lot of fees and charges and turning around and initiating another lease, or you buy the vehicle from the leasing company at (in most cases) far more that the vehicle is worth by then on the open market, or you bite the bullet and save enough money for a reasonable down payment (or even better, the entire cost) on your next vehicle. Given a reasonably reliable vehicle like the Tercel.
Neutron Star:
If the Tercel’s made it to 100K without revealing any major manufacturing or design flaw, nothing major is likely to blow up soon, assuming that neutron star is able to spend what’s required to bring it into good running order. Also arguing for fixing it is that the clutch and timing belt have been replaced recently, eliminating two potential sources of foreseeable repairs in the next 40-50K miles.
The oil leak, while it certainly should be checked out, may turn out to be one of those things that you live with, if it doesn’t reveal a major problem. A lot of leaks of this kind can cost more to find and fix than they would cost in lost oil and other costs if you just put up with it. In and of itself it’s not causing the reduced gas mileage, though they may both be symptomatic of the same problem.
Does the car still suffer from poorer gas mileage after getting tuned up last week? If so, there may still be a significant problem somewhere.
Knowing nothing about your financial and personal situation, but assuming that keeping the initial cash outlay to a minimum is a prerequisite, I’d still say fixing the Tercel makes sense (if buying or leasing a new car wasn’t a hardship, presumably the decision would be easy). Even if it costs $2000 to bring the car up to speed (so to speak), you’re not likely to be able to spend that same $2000 on another vehicle that’ll serve you better.
Just my opinion, FWIW.
“Ain’t no man can avoid being born average, but there ain’t no man got to be common.” –Satchel Paige