I have a 2003 V-8 tundra. 4,800 miles so far. I've noticed recently that the oil under the oil cap has turned milky white. I live in Georgia and we hit winter about a month ago which is about the same time I noticed it. The oil on the dipstick appears normal and I've had no driveability issues.
I've called several dealers and one told me that I have a blown head gasket. Another said they don't know, bring it in. I have since searched the internet and found out that your oil can turn milky white under the oil cap due to incomplete warm ups and short trips in cold weather.
Anyone have any ideas???
Changed the oil at 1300 (toyota dealer)
Changed again at 4200 myself castrol gtx 5w30, purolator premium filter
(I know synthetic is better but I plan to change it every 3000).