Toyota Camry 1991 Problems

I doubt that changing the fuel would have the effect that you describe; it's more likely a mechanical fault that has developed. I would have your mechanic check the engine sensors and clean the throttle body.

You can use both fuels with safety in both cars. You should get better economy by using the better fuel, but I would suggest that you try 95 before trying 98 because it costs less up front.

It depends on how long you plan to keep the car and its condition. If it is in good condition and you plan to keep it for four to five years minimum then it could be a worthwhile thing to do, but if it's not in great shape and you don't plan to keep it then it certainly wouldn't be worth it. The problem is that it is an old car and you can't predict what problems you might have in the near future. I wouldn't do it.

THOSE early Camrys are tough, reliable cars, but they won't survive long if you don't service them. The main thing is to change the oil and the oil filter, something you could do yourself. If it has other problems, take it to a mechanic. As for its value, your car is getting close to the end of the road. Depreciation doesn't come into it at such an age, its value is determined by its condition. If you don't service it and have the problems fixed you will have trouble selling it. In good condition it will probably be worth $1000 to $1500.

LIKE anything used, there is a risk. Though you might be told a motor has done 30,000km, there's no way of knowing the truth, so a warranty is important. Fitting a rebuilt engine is the best course, but the risk of fitting a second-hand imported unit is worth considering given your car has such high mileage and won't be worth much anyway.

NOT an easy one, because it isn't possible to predict when it will become uneconomical to maintain. The reality is that the higher the mileage, the more likely it is to break down, but it may not. The Camry generally doesn't give too much trouble, so I wouldn't rush in and sell it simply because the odometer is climbing. If you want to update, then it's probably better to do it sooner rather than later because its value is decreasing. I get the feeling you're happy with the Camry, so keep it.