Changed the oil yesterday w/ M1 0w40 fully synth.
First start while the car was on the lift , it went smooth, I saw right away the diff. it didn't even went 1.5-1.7k rpm to idle like before w/ 10w30 but only made it to 1.3k rpm and went down to 1.1k rpm and in 1 min it was already in normal working temp.
I did noticed this M1 0w40 fully synth builds more pressure then the M1 10w30 , on idle it was between 35-40 where as 10w30 was at 25-30. even when in drive it is about 10 psi more pressure then 10w30 one.
JDM SAM - How would turbo get affected by this ?? (stock turbo still)
After that i cleaned the batteries terminal then when i started it to leave the driveway it
wasn't idling well it was going up and down between 200 - 700 rpm not fast but wasn't stable either.
I drove around the block to check it out , car was running perfect no noise from the engine in particular but the idle wasn't stable and on every stop sign it wanted to shut off.
I'm thinking the ECU must be freaking out ????
UPDATE: after driving the whole day = 40 miles , car is back to normal and it "seems" to be reving just a tad faster or it might be me
Over all it's good, with 10w30 i used to hear kinda grind noise in first engine start up in the morning with 0w40 I don't hear anything like that.
Plus the fans don't turn on as often as before so ..... looking good so far.