I just purchased a new WRX 2004. The only facts I know about it is a that break-in is 1000 miles. The first oil change listed is 3750 miles severe. I already violated the 4000 rpm rule in the manual on the test drive and on occasion now at 75 miles. (its very easy to surpass
). Actually I'm a mellow driver.
Anyway are there any facts out there about a switch over and why would it matter? Doesn't synthetic have similar properties to conventional oil just better? I was planning first change at ?????. My main reason for synthetic is the potential of high temps that are generated by the turbo and it "cooking" the oil.
I saw a similar thread but was wondering of any written papers or information on the subject? I plan on using Mobil 1 as my trusted mechanic uses it and actually out of bottles. Mobil 1 website says it does not matter in FAQ.
Still no idea when to change it out (I imagine at least 1000 miles). The car will sit for three weeks in August as I will be traveling to France. The car will be driven mostly for highway miles.
[ July 14, 2004, 04:04 AM: Message edited by: harper ]

Anyway are there any facts out there about a switch over and why would it matter? Doesn't synthetic have similar properties to conventional oil just better? I was planning first change at ?????. My main reason for synthetic is the potential of high temps that are generated by the turbo and it "cooking" the oil.
I saw a similar thread but was wondering of any written papers or information on the subject? I plan on using Mobil 1 as my trusted mechanic uses it and actually out of bottles. Mobil 1 website says it does not matter in FAQ.
Still no idea when to change it out (I imagine at least 1000 miles). The car will sit for three weeks in August as I will be traveling to France. The car will be driven mostly for highway miles.
[ July 14, 2004, 04:04 AM: Message edited by: harper ]