diff --git a/speeduino/SD_logger.h b/speeduino/SD_logger.h
index 9c244617..e7bcc488 100644
--- a/speeduino/SD_logger.h
+++ b/speeduino/SD_logger.h
@@ -70,6 +70,7 @@ void writeSDLogEntry();
 void writetSDLogHeader();
 void beginSDLogging();
 void endSDLogging();
+void syncSDLog();
 void setTS_SD_status();
 void formatExFat();
 void deleteLogFile(char, char, char, char);
diff --git a/speeduino/SD_logger.ino b/speeduino/SD_logger.ino
index 21fc382a..e38cc1a2 100644
--- a/speeduino/SD_logger.ino
+++ b/speeduino/SD_logger.ino
@@ -445,6 +445,14 @@ void checkForSDStop()
   
 }
 
+void syncSDLog()
+{     
+  if( (SD_status == SD_STATUS_ACTIVE) && (!logFile.isBusy()) )
+  {
+    logFile.sync();
+  }
+}
+
 /** 
  * Will perform a complete format of the SD card to ExFAT. 
  * This will delete all files and create a new empty file system.
diff --git a/speeduino/speeduino.ino b/speeduino/speeduino.ino
index e9065fef..d719cbd5 100644
--- a/speeduino/speeduino.ino
+++ b/speeduino/speeduino.ino
@@ -308,6 +308,7 @@ void loop(void)
 
       #ifdef SD_LOGGING
         if(configPage13.onboard_log_file_rate == LOGGER_RATE_4HZ) { writeSDLogEntry(); }
+        syncSDLog(); //Sync the SD log file to the card 4 times per second. 
       #endif  
       
       currentStatus.fuelPressure = getFuelPressure();