TSB 99816 — Ford Service bulletin

99816 is a service bulletin on file with NHTSA for 7 Ford models, 1990–1996 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. FORD MOTOR COMPANY NOW RECOMMENDS SAE 5W-30 VISCOSITY GRADE FOR SERVICING ANY FORD GASOLINE-POWERED VEHICLE REGARDLESS OF MODEL YEAR.

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
7Vehicles named
6Model years

Vehicles and model years 99816 names

VehicleModel years
Ford Bronco 1990, 1991, 1992, 1993, 1995, 1996
Ford Crown Victoria 1990, 1991
Ford F-150 1991, 1992, 1993
Ford F-250 1991, 1992, 1993
Ford Mustang 1990, 1991, 1992, 1993
Ford Ranger 1990, 1991
Ford Taurus 1990, 1991, 1992

Every document filed under 99816

Document IDFiledType
99816 May 3, 1999 Service bulletin

What 99816 covers

Engine — the component vocabulary NHTSA files this communication under.

← All Ford Bronco TSB years TSB lookup by model

Questions buyers ask

What is TSB 99816?

99816 is a service bulletin filed with NHTSA by Ford, covering 7 Ford models across the 1990–1996 model years. NHTSA's summary reads: FORD MOTOR COMPANY NOW RECOMMENDS SAE 5W-30 VISCOSITY GRADE FOR SERVICING ANY FORD GASOLINE-POWERED VEHICLE REGARDLESS OF MODEL YEAR.

Which vehicles does 99816 cover?

NHTSA's file names Ford Bronco (1990–1993, 1995–1996); Ford Crown Victoria (1990–1991); Ford F-150 (1991–1993); Ford F-250 (1991–1993); Ford Mustang (1990–1993); Ford Ranger (1990–1991); Ford Taurus (1990–1992). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB 99816 a recall, and is the repair free?

No. 99816 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of 99816?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 99816, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 99816. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.