G
Guest
·Having only owned my '99 Cougar V6 A/T for about 4,000 miles, I was a little puzzled to see that when I went for my first oil change last weekend, the invoice listed the oil used as Pennzoil 5W-20. I've never owned or seen a car (except I think maybe the Ford Focus) that uses such a light oil, and I'd only expect something like that moreso in a high-rev 4 cylinder than an engine like mine. Is this customarily what is used or recommended for this car?