NUMBER: 02-103-07R
DATE: 10/29/07
| APPLICABILITY: | All Turbo Equipped Vehicles |
| SUBJECT: | Turbocharger Oil Supply Mesh Screen |
INTRODUCTION
This bulletin is for informational purposes only.
Turbocharged engines require proper maintenance especially when the vehicle is used under severe driving conditions, such as moderate to hard acceleration and engine braking on a somewhat regular basis.
In any case, it is recommended that the engine oil and filter be changed every 3,750 miles (6,000 km) or 3-3/4 months.
In addition, the mesh screen which is located inside the banjo bolt that secures the turbocharger oil supply pipe to the back of the right side cylinder head should be checked to make sure it is not clogged or restricted especially if the condition of the oil is questionable or as to when the last oil change was performed. If clogged or restricted, it will reduce or cut off the oil supply to the turbo resulting in failure. The oil supply pipe should also be checked to make sure that there are no obstructions. Note: The mesh screen is only available with a replacement banjo bolt.
Banjo bolt and Mesh Screen
(note direction of screen)
- Make sure the mesh screen is installed in the proper direction; incorrect installation will cut off oil supply to the turbo.
- Do not confuse the oil supply mesh screen with the Active Valve Control System (AVCS) union screw filter. Refer to Service Bulletin 02-97-05, dated 10/06/05.
- When the vehicle is used under severe driving conditions, the engine oil is consumed
more quickly than under normal driving conditions due to high intake manifold vacuum during engine braking and higher temperatures; the engine oil level should be checked at every fuel fill up. For additional examples of severe driving conditions, refer to the Warranty & Maintenance Booklet.
- Mobil 1 advanced full-synthetic motor oil 5W-30 utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.
- Helps protect critical engine parts for up to 10,000 miles between oil changes,* controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
Last update on 2026-06-19 / Affiliate links / Images from Amazon Product Advertising API
- Advanced protection against the four main causes of engine breakdown: wear friction heat and deposits
- Delivers 40% stronger wear protection than industry standards to reduce friction and improve fuel economy
- Provides 15% better deposit defense vs. industry standards, keeping engines cleaner for smoother performance and longer-lasting protection
- Up to 2.5X better heat protection vs. industry standards to fight harmful sludge formation and thermal breakdown
- Engineered for excellent low-temperature flow, reducing metal-to-metal contact during cold starts — when most engine wear typically occurs
Last update on 2026-06-19 / Affiliate links / Images from Amazon Product Advertising API
- Better Wear Protection
- Increased Fuel Efficiency. Royal Purple Motor Oil Is Both Fluid And Lubricant
- Better Protection Of The Expensive Catalytic Emission System
- Improved Compatibility With Fuels Containing Ethanol
Last update on 2026-06-19 / Affiliate links / Images from Amazon Product Advertising API
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