The 1995 G20 is essentially a re-badged Nissan Primera/Sentra SE-R with the SR20DE engine — solid mechanicals when maintained, but age-related failures now dominate. Expect distributor issues, transmission mounts collapsing, and oil consumption battles on neglected examples.
Distributor O-Ring Oil Leak and Ignition Failure
Common · medium severityTypical onset: 80,000-150,000 mi
Symptoms: Oil seeping around distributor base into spark plug valley, Random misfires or no-start conditions, Check engine light with ignition-related codes, Oil puddle under distributor cap
Fix: Replace distributor O-ring seal (preventive) or entire distributor assembly if internal components failed. 1.5-2 hours labor. Often combined with valve cover gasket replacement since you're already there.
Estimated cost: $250-600
Transmission Mount Collapse
Common · medium severityTypical onset: 70,000-120,000 mi
Symptoms: Severe clunking on acceleration or deceleration, Shifter vibration at idle, Visible sag of engine/trans assembly, Difficulty engaging gears smoothly
Fix: Replace front and rear transmission mounts; the rubber deteriorates badly on these. Front mount is 1 hour, rear is 1.5 hours due to access. Many shops do both at once.
Estimated cost: $300-500
Piston Ring Wear and Oil Consumption
Occasional · high severityTypical onset: 150,000+ mi
Symptoms: Blue smoke on startup or hard acceleration, Burning 1+ quart every 500-1000 miles, Fouled spark plugs, Loss of compression in one or more cylinders
Fix: SR20DE rings wear if oil changes were skipped. Proper fix is engine rebuild with new rings, hone cylinders, bearings inspection — 18-24 hours labor. Many owners just top off oil and drive it until it grenades.
Estimated cost: $2,500-4,000
Fuel Filler Pipe Rust and Leakage
Common · high severitySymptoms: Fuel smell near rear of car, Visible corrosion or holes in filler neck, Check engine light for evaporative system leak, Fuel stains on ground after fill-up
Fix: Filler pipe corrodes from inside out in salt states; covered by NHTSA recall but many weren't completed. Replacement requires dropping tank or cutting access panel. 2-3 hours labor if tank doesn't have to come all the way out.
Estimated cost: $400-700
Valve Cover Gasket and Cam Seal Leaks
Common · low severityTypical onset: 60,000-100,000 mi
Symptoms: Oil seepage on front or rear of valve cover, Burning oil smell from exhaust manifold heat, Oil drips on exhaust or subframe, Gradual oil loss between changes
Fix: Standard gasket job, but cam seals often weep too. Replace valve cover gasket, grommets, cam seals, and PCV valve together. 2 hours labor. Use OEM Nissan gaskets — aftermarket ones leak again in 20k miles.
Estimated cost: $250-450
Front Lower Control Arm Bushings
Occasional · medium severityTypical onset: 90,000-140,000 mi
Symptoms: Clunking over bumps, Wandering steering or poor return to center, Inner tire edge wear, Visible cracking or tearing of rubber bushings
Fix: Bushings separate or tear; control arms need replacement (bushings not sold separately economically). 2.5-3 hours for both sides including alignment afterward.
Estimated cost: $500-800
Ignition Switch and Key Cylinder Wear
Occasional · medium severityTypical onset: 120,000+ mi
Symptoms: Key hard to turn or won't turn at all, Intermittent no-crank condition, Accessory power cuts out while driving, Key feels loose in cylinder
Fix: Tumbler pins wear and ignition switch contacts fail. Replace ignition switch and/or lock cylinder assembly. 1.5 hours labor; requires steering column disassembly.
Estimated cost: $300-500
Buy one if it has meticulous service records and no oil consumption — skip any example burning oil or with deferred maintenance, as catch-up costs exceed the car's value.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.