2017 MAZDA MX5 MIATA compression ratio

5 –19 Interior Features
Audio System
The number of characters which can be
displayed is restricted.
Operating Tips for WMAWMA is short for Windows Media *1
Audio
and is the audio compression format used
by Microsoft *1
.
Audio data can be created and stored at a
higher compression ratio than MP3.
This unit plays files with the extension
(.wma) as WMA files.
*1 Windows Media and Microsoft are
registered trademarks of Microsoft
Corporation U.S. in the United States
and other countries.
CAUTION Do not use an audio file extension on
files other than audio files. In addition,
do not change the audio file extension.
Otherwise, the unit will not recognize
the file correctly resulting in noise or a
malfunction. 
WMA files written under specifications
other than the indicated specification
may not play normally or files or folder
names may not display correctly. 
The file extension may not be provided
depending on the computer operating
system, version, software, or settings. In
this case, add the file extension “.wma”
to the end of the file name, and then
write it to the disc/memory. Operating Tips for AAC AAC stands for Advanced Audio Coding,
which is standardized voice compression
established by the ISO *1
working group
(MPEG). Audio data can be created and
stored at a higher compression ratio than
MP3.
This unit plays files with the extensions
(.aac *2
/.m4a/.wav *2
) as the AAC files.
CAUTION Do not use an audio file extension on
files other than audio files. In addition,
do not change the audio file extension.
Otherwise, the unit will not recognize
the file correctly resulting in noise or a
malfunction. 
AAC files written under specifications
other than the indicated specification
may not play normally or files or folder
names may not display correctly. 
The file extension may not be provided
depending on the computer operating
system, version, software, or settings. In
this case, add the file extension “.aac *2
”,
“.m4a”, or “.wav *2
” to the end of the file
name, and then write it to the memory.
*1 International Organization for
Standardization
*2 Type B
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5 –20 Interior Features
Audio System Operating Tips for OGGOGG is the audio compression format for
Xiph. Org Foundation.
Audio data can be created and stored at a
higher compression ratio than MP3.
This unit plays files with the extension
(.ogg) as OGG files.
CAUTION Do not use an audio file extension on
files other than audio files. In addition,
do not change the audio file extension.
Otherwise, the unit will not recognize
the file correctly resulting in noise or a
malfunction. 
OGG files written under specifications
other than the indicated specification
may not play normally or files or folder
names may not display correctly. 
The file extension may not be provided
depending on the computer operating
system, version, software, or settings. In
this case, add the file extension “.ogg” to
the end of the file name, and then write
it to the memory.
Operating Tips for USB device
This unit plays audio files as follows: Extension Playback with this unit
.mp3 MP3
.wma WMA
.aac *1
AAC
.m4a
.wav *1
WAV
.ogg *1
OGGCAUTION Do not use an audio file extension on
files other than audio files. In addition,
do not change the audio file extension.
Otherwise, the unit will not recognize
the file correctly resulting in noise or a
malfunction.
NOTE 
Playback may not be possible
depending on the type and condition of
the USB flash memory even if the audio
file complies with the standard. 
A copyright protected WMA/AAC file
cannot be played in this unit. 
(Type B)
If a file name in the USB memory is too
long, it could cause operation problems
such as not being able to playback the
song.
(Recommended: Within 80 characters) 
The order of the music data stored in
the device may differ from the playback
order. 
To prevent loss or damage of stored
data, we recommend that you always
back up your data. 
If a device exceeds the maximum
electric current value of 1,000 mA,
it may not operate or recharge when
connected. 
Do not pull out the USB device while in
the USB mode (only pull it out while in
FM/AM radio or CD mode). 
The device will not operate if the data is
password protected.
MP3/WMA/AAC/OGG *1
files written
under specifications other than the
indicated specification may not play
normally or files/folder names may not
display correctly.
*1 Type B
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9 –4 Specifications
Specifications
Specifications Engine Item Specification
Type DOHC-16V in-line, 4-cylinder
Bore × Stroke 83.5 × 91.2 mm (3.29 × 3.59 in)
Displacement 1,997.6 ml (1,997.6 cc)
Compression ratio 13.0
Electrical System Item Classification
Battery 12V-45Ah/20HR
Spark-plug number Mazda Genuine spark plug *1
PE5R-18-110 or PE5S-18-110
*1 The spark plugs provide the SKYACTIV-G its optimum performance. Consult an Authorized Mazda Dealer for
details.
CAUTION When cleaning the iridium plugs, do not use a wire brush. The fine particulate coating on
the iridium alloy and platinum tips could be damaged.
Lubricant Quality Lubricant Classification
Engine oil Refer to Recommended Oil on page 6-27 .
Coolant FL-22 type
Manual transmission oil Mazda Original Long Life Gear Oil IS *1
Automatic transmission fluid Mazda Genuine JWS3309
Rear differential oil Mazda Long Life Hypoid Gear Oil SG1
Brake/Clutch fluid SAE J1703 or FMVSS116 DOT-3
*1 Mazda Original Long Life Gear Oil IS is superior oil for optimu m shift-feel. Using Mazda Original Long Life
Gear Oil IS is recommended.
If Mazda Original Long Life Gear Oil IS cannot be obtained, use standard oil (API Service GL-4 (SAE 75W-
90)). However, shifting in very low temperatures may become difficult.
NOTE
Refer to Introduction on (page 6-2 ) for owner's responsibility in protecting your
investment.
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