I have a '95 Del Sol with a D16-Z6 VTEC SOHC. The stock oil pan only holds 3 qts of oil and consumes approximately one quart of oil between oil changes. There are no oil leaks, etc... and the engine isn't burning oil so I figure it is simply due to only holding three quarts of oil that it just breaks down between changes. I am wondering if anyone knows of a 4 qt. oil pan that can be purchased as replacement or maybe even an oil additive to help with viscosity breakdown between changes? I did switch to full synthetic oil which helps a little but I'd rather not have to deal with it at all. Any helpful ideas are welcome. TIA.