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96 855 N/A auto<br>146,xxx miles<p>Concern 1. Im using amsoil 5w30 and it seem to be consuming it <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/mad.gif" BORDER="0"> as there are not any leaks. I dont no what type (conventional oil/synthetic) of oil was used at the volvo dealer were it was serviced. Should i switch to conventonal or blended oil?<p>Concern 2. After doing the first oil change i (bought car at 140,xxx) later found milky stuff on the dipstick. Did not smell of coolant and the level was not low <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0"> . could this be related to the switch from conventional oil to full synthetic? (concern 1)<p>Concern 3. Bought the car aware of two codes EFI 436 and 425. checked for a vacuum leak, could not hear or see a leak. With the current milage should just replace the front o2 sensor, or look for another cause. The reson being the sensor costs at least $147 for IPD.<p>Concern 4. I commute from wisconsin the cities in minnesota for school and work. These trips range from 60 to 130 mile round trips. The best mpg I have been able to muster is 26mpg <IMG NAME="icon" SRC="http://www.vortexmediagroup.com/images/banghead.gif" BORDER="0"> going 65-70mph with little stop and go traffic. What type of numbers are you guys gittin. Im hoping this is due to a faulty o2 sensor in concern 3.<p>Thanks in advance for any help or ideas. If more info is needed just ask.<p>Thanks,<br> John
 

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1. As these engines get older they can use oil, you might want to go with a heavier weight synthetic.<p>2. Milky residue is probably condensation/cold weather. Drive it around more an it should clear up.<p>3. Check all the rubber elbows as well, they crack and cause leaks.<br>You don't need an IPD o2 sensor, a bosch universal is significantly less.<p>4. MPG looks good.<BR><BR>
<i>Modified by el director at 2:29 PM 3-25-2009</i>
 
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