Mod (Ret.)

You guys have money to burn. One of the many advantages of full synthetic is to go longer between oil changes. If you're changing your oil (using full synthetic) earlier than 5K, then your wasting your money.

Switch back to semi-synthetic and save a few bucks.

XPerties

I total respect your opoion but disagree however the above is a big no no. You should never switch from synthetic back to traditional. This is how seals start leaking.

Keeblerz28

No, that is not correct. Look at #4
http://www.valvoline.com/faqs/motor-...tic-motor-oil/

fastford04150

fully synthetic is only way to go, if while running fully synthetic and ford tells me to come in every 5000, i have oil changes every 5000 miles.

XPerties

Ahhh, Valvoline must be right.

Either way I'm not a mechanic but it's a traditional tale I have lived by and changing oil between 3-5k is what I have done and will continue to do. Just because some may think others are burning money doesn't mean it's wrong.


Not to mention with the everyday busy life some of us have, if you set a target time of 3-5k it gives you some lead way in case you don't get around to it.

Keeblerz28

Would you rather believe Mobil1?
https://www.mobiloil.com/USA-English...Motor_Oil.aspx

XPerties

Echo......

Mod (Ret.)

That myth is as old as the one that said if you used synthetic on roller bearing type engines, the roller bearings would slide and not roll.

Total bunk. Myths like these got passed around for years on the internet and forum sites when synthetic first came out. A lot were started from oil manufacturers that made the dyno based oil. Then, mysteriously, they all came out with synthetic oil. Oil manufacturers of synthetic oil even advertise that fact that you can mix synthetic with conventional oils ("dyno" based).

I'll refuse to address these oil myths any further, as they all have been debunked long ago. If you still want to believe in them, nothing at this point on this forum will change your mind.

livefast

as your engine runs fuel gets into the oil if the dipstick ignites to much fuel change your, not the best method but its a simple way to do it

Keeblerz28

What? Fuel should not be getting into the oil unless your seals/rings are shot. Do you drain out 12L when you change your oil and only put in 7L? No. My buddy actually had this happen in his '82 toyota, he would have to periodically drain his crankcase to maintain the proper oil level. Engines should not be run overfull...