Been looking for a source for crush washers for the oil drain plug.
Wunderlich has a 16x20 COPPER washer, but not in ALUMINUIM.
The last time I changed my oil, the washer was ALUMINIUM but the spares I got at the local independent shop were too tight (and fat), so I prayed and re-used.
Now, looking for the correct washers and found the right description and size, but different material.
I am thinking that the Aluminium version is softer to create a better seal, but have never had any problems with copper on my cars that require similar torque values.
I am thinking that BMW decided to use Al washers for a reason (material properties, financial decision, etc.), but I don't know if I should buy the less expensive copper ones (a dealer price I saw was almost 3x copper ones). Not expensive, but I was going for one-stop-shopping.
Anyone with experience with copper washers, please weigh in?
Wunderlich has a 16x20 COPPER washer, but not in ALUMINUIM.
The last time I changed my oil, the washer was ALUMINIUM but the spares I got at the local independent shop were too tight (and fat), so I prayed and re-used.
Now, looking for the correct washers and found the right description and size, but different material.
I am thinking that the Aluminium version is softer to create a better seal, but have never had any problems with copper on my cars that require similar torque values.
I am thinking that BMW decided to use Al washers for a reason (material properties, financial decision, etc.), but I don't know if I should buy the less expensive copper ones (a dealer price I saw was almost 3x copper ones). Not expensive, but I was going for one-stop-shopping.
Anyone with experience with copper washers, please weigh in?
