Flahertb, is "critters" as in bugs or animals or both? My Z was stored in the people's enclosed shed and mice/chipmunks starting nesting in the car. Pull a butt-ton of insulation and acorns out of the vents and from under the driver's left foot rest. I then pulled a another wad of snake skins out from under the rear console between the roll bars. I guess the reptiles thought they had the perfect hotel with lunch being served in the front. I have an old truck sitting and the oil sounds like a great idea, especially since it works.
S. Maykowski, Columbus MS.
My '99 Z3 Alpine White 2.8L Speed Buggy