This is just one data point, but here goes. On my daughter's Toyota with the 3S-FE engine, which takes a small oil filter on the side of the block, the filter operates almost upside-down, I have been using the Tough-Guard. When I restart the engine after it's good and hot and has been sitting about 15 minutes, the oil light would stay on several seconds. When I would change the oil, the tough-guard would be empty of oil after a good long drain period.
I just put a Pure-1 on based on what I have read here,
and so far the oil light goes out quicker on a hot start than previously.
I'll try to remember to post when I change this load of oil, and remark if the Pure-1 is full of oil when I take it off...I am expecting it will be, but I'll report what I see..
I just put a Pure-1 on based on what I have read here,
I'll try to remember to post when I change this load of oil, and remark if the Pure-1 is full of oil when I take it off...I am expecting it will be, but I'll report what I see..