Project JDM

Toyota Supra MK4 (JZA80) Complete Maintenance Schedule

Complete 1993-2002 Toyota Supra MK4 maintenance guide with service intervals, costs, parts lists, and common 2JZ-GTE 3.0L Twin-Turbo I6 issues.

Toyota Supra MK4 JZA80
US Import Legal
Toyota Supra MK4
JZA80 (1993-2002)
Power
See specifications
0-60
See specifications
Top Speed
See specifications
Current Market Value
Contact for pricing

🇺🇸 US Import Information

This vehicle is currently legal to import to the United States under the 25-year exemption rule. Vehicles manufactured in 1993 or earlier may be imported without DOT/EPA modifications.

Toyota Supra MK4 (JZA80)
Maintenance Schedule for 1993-2002 | Engine: 2JZ-GTE 3.0L Twin-Turbo I6
3,000 Miles / 3 Months
2 tasks • routine maintenance
routine
Engine Oil & Filter Change
Moderate DIY
Replace engine oil with synthetic 5W-30 or 10W-30. 2JZ-GTE requires 6 quarts (higher displacement than RB26). Use high-quality synthetic oil for turbo protection. OEM filter recommended.
45 minutes
DIY Cost$50-$75
Shop Cost$95-$150

Parts Required:

  • Mobil 1 5W-30 Full Synthetic Motor Oil × 6 quartsOEM: 08880-10705
  • Toyota OEM Oil Filter × 1OEM: 90915-YZZD2

Tools Required:

Socket set
Oil filter wrench
Drain pan
Funnel
Jack stands
  • Hot oil can cause burns - wait 10 minutes after shutdown
  • Dispose of used oil at recycling center
Tire Rotation & Pressure Check
Easy DIY
Rotate tires in standard pattern. Check tire pressure (35 PSI front, 36 PSI rear for turbo model). Inspect for uneven wear indicating alignment issues.
30 minutes
DIY Cost$0 (DIY)
Shop Cost$40-$60

Tools Required:

Jack
Jack stands
Torque wrench
Tire pressure gauge
  • Torque lug nuts to 76 lb-ft in star pattern
Common Issues & Solutions
Preventive maintenance based on known issues with this model
Blown head gasket (white smoke, coolant loss, overheating)
critical
Cause:

Factory head gasket is too thin and fails under high boost pressure. Pre-1997 models especially prone. Head studs stretch over time allowing gasket failure.

Solution:

Replace with ARP head studs and multi-layer steel (MLS) head gasket. Retorque to 72 lb-ft. This is a known weakness of the 2JZ-GTE and should be upgraded proactively on high-boost builds.

Estimated Cost:$2,500-$4,500 (head gasket + ARP studs + machine work)
Turbo oil leaks (blue smoke on deceleration)
moderate
Cause:

Single CT12A/CT15B turbo seals wear over time. Oil drains back into exhaust housing. Common on high-mileage Supras (100K+ miles).

Solution:

Rebuild turbo seals or upgrade to single turbo conversion (GT3582R, 6266, etc.). Single turbo eliminates sequential system complexity.

Estimated Cost:$1,500-$3,000 (turbo rebuild) or $4,000-$7,000 (single turbo conversion)
Automatic transmission slipping (especially under boost)
moderate
Cause:

Stock A340E automatic transmission cannot handle high torque. Clutch packs wear, shifts become soft and delayed. Manual cars do not have this issue.

Solution:

Rebuild transmission with upgraded clutch packs and torque converter (rated for 500+ hp). Or swap to manual transmission (V160 or V161).

Estimated Cost:$2,000-$3,500 (rebuild) or $5,000-$8,000 (manual swap)
Fuel pump failure (hesitation, stalling, loss of power)
moderate
Cause:

Stock fuel pump fails on high-mileage cars. Walbro 255 LPH pump is common upgrade. Fuel filter clogs if not replaced.

Solution:

Replace fuel pump with Walbro 255 LPH or AEM 340 LPH. Replace fuel filter at same time. Inspect fuel lines for cracks.

Estimated Cost:$300-$600 (pump + filter + labor)
Differential clunking (especially on manual cars)
minor
Cause:

Torsen limited-slip differential wears over time. Clunking on acceleration/deceleration. Manual cars with aggressive driving affected most.

Solution:

Rebuild differential or replace with OEM Torsen unit. Some upgrade to aftermarket 2-way LSD for track use.

Estimated Cost:$1,200-$2,200 (rebuild) or $1,800-$3,000 (replacement)
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Comprehensive maintenance schedule for Toyota Supra MK4 (JZA80). This guide covers all factory-recommended service intervals from 3,000 to 90,000 miles, including DIY vs shop cost comparisons, required tools, and common issues specific to this vehicle.