What oil for 2002 A4 1.8T
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Joined: May 2006
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RE: What oil for 2002 A4 1.8T
From autoeducation.com:
I think you have to consider what temperature your car will see while it has the oil you are going to use. If you change your oil in the spring and fall you may want to alter the cold and hot weights you use knowing the season that lies ahead. If you live on the west coast, you may not ever have to do that.
I once did oil changes many moons ago. Now I feel like 1/2 a man because I don't even know what I have, the stealership did it at my 50k check-up... ;-)
Oil weight, or viscosity, refers to how thick or thin the oil is. The temperature requirements set for oil by the Society of Automotive Engineers (SAE) is 0 degrees F (low) and 210 degrees F (high).
Oils meeting the SAE's low temperature requirements have a "W" after the viscosity rating (example: 10W), and oils that meet the high ratings have no letter (example SAE 30). An oil is rated for viscosity by heating it to a specified temperature, and then allowing it to flow out of a specifically sized hole. Its viscosity rating is determined by the length of time it takes to flow out of the hole. If it flows quickly, it gets a low rating. If it flows slowly, it gets a high rating.
Engines need oil that is thin enough for cold starts, and thick enough when the engine is hot. Since oil gets thinner when heated, and thicker when cooled, most of us use what are called multi-grade, or multi-viscosity oils. These oils meet SAE specifications for the low temperature requirements of a light oil and the high temperature requirements of a heavy oil. You will hear them referred to as multi-viscosity, all-season and all-weather oils. An example is a 10W-30 which is commonly found in stores. When choosing oil, always follow the manufacturer's recommendation.
Wondering how you can save money and protect your vehicle at the same time? Consider switching to synthetic oil and changing your oil at greater intervals.
Oils meeting the SAE's low temperature requirements have a "W" after the viscosity rating (example: 10W), and oils that meet the high ratings have no letter (example SAE 30). An oil is rated for viscosity by heating it to a specified temperature, and then allowing it to flow out of a specifically sized hole. Its viscosity rating is determined by the length of time it takes to flow out of the hole. If it flows quickly, it gets a low rating. If it flows slowly, it gets a high rating.
Engines need oil that is thin enough for cold starts, and thick enough when the engine is hot. Since oil gets thinner when heated, and thicker when cooled, most of us use what are called multi-grade, or multi-viscosity oils. These oils meet SAE specifications for the low temperature requirements of a light oil and the high temperature requirements of a heavy oil. You will hear them referred to as multi-viscosity, all-season and all-weather oils. An example is a 10W-30 which is commonly found in stores. When choosing oil, always follow the manufacturer's recommendation.
Wondering how you can save money and protect your vehicle at the same time? Consider switching to synthetic oil and changing your oil at greater intervals.
I once did oil changes many moons ago. Now I feel like 1/2 a man because I don't even know what I have, the stealership did it at my 50k check-up... ;-)
Joined: Nov 2006
Posts: 1
RE: What oil for 2002 A4 1.8T
There was a factory service bulletin about 1 year ago recommending Mobil 1 synthetic, 0-40w. I could be wrong, but I doubt any of us on this forum know more than audi engineers. My question is: How often to change the oil???
I'm a little skeptical of the 10k mile interval. While the factory would make proper choices about WHICH oil to use, it seems to me that they probably don't care if the engine wears out at 120,000 miles versus 180,000 miles.
I'm a little skeptical of the 10k mile interval. While the factory would make proper choices about WHICH oil to use, it seems to me that they probably don't care if the engine wears out at 120,000 miles versus 180,000 miles.