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Service bulletin S16YS

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10128902
Published by NHTSA2018-02-21
Manufacturer's numberS16YS
Manufacturer's date2016-07-25
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

S16YS - Vision Ford 6.8L Engine Oil Requirement: Certain 2013 through 2017 model year Blue Bird Vision Ford 6.8L Drivers and Service manuals list either 5W-20 or 5W-30 Engine Oil Requirements. At your next and all subsequent oil changes, Blue Bird recommends only the use of 5W-30 motor oil. All oils used must have the API certification mark. The current oil fill cap is labeled 5W-20. Install a new oil fill cap labeled 5W-30.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
BLUE BIRD VISION2013 to 2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.