I have a 95 Ford Aspire there is oil in the radiator why this?

Oil in your 95 Ford Aspire's radiator almost certainly indicates a blown head gasket. This is a serious problem. The head gasket seals the combustion chambers from the cooling system. When it fails, combustion pressure or coolant can leak into the other system. Since you're seeing oil in the coolant, it's likely a breach allowing combustion byproducts (including oil) into the cooling system.

Other, less likely possibilities include:

* Cracked cylinder head: A crack in the cylinder head itself could allow oil to seep into the cooling passages.

* Cracked engine block: Less common than a blown head gasket, but a crack in the engine block could also cause this issue.

Do NOT drive the car. Continuing to drive it with a blown head gasket will likely cause catastrophic engine damage. The oil contaminating the coolant can clog passages, leading to overheating and potentially seizing the engine.

You need to have a mechanic diagnose the problem accurately. They can perform a pressure test on the cooling system and a compression test on the cylinders to pinpoint the exact cause. Repairing a blown head gasket can be expensive, and depending on the extent of the damage, it may not be economically feasible to repair an older vehicle like a '95 Aspire.