However, a reasonable range would be between 30 and 40 PSI (pounds per square inch). This is a general guideline, and you must consult your vehicle's repair manual or a reliable source specific to your engine type for the precise specification.
To find the correct fuel pressure, you should:
1. Find your engine's specifications: This information is usually found on a sticker under the hood or in your owner's manual.
2. Consult a repair manual: A Haynes or Chilton manual for your specific year and model Cutlass Supreme will have the exact fuel pressure specifications for your engine.
3. Check online forums: Search for forums specific to 1990 Oldsmobile Cutlass Supremes. Owners there might have discussed fuel pressure values. Remember to be cautious and verify information from multiple sources.
Attempting to measure fuel pressure yourself requires some mechanical skill and caution, as you'll be working with potentially flammable fuel. If you're not comfortable doing this, take your car to a qualified mechanic.
