LS1 Eddie

iTrader: (2)

I've been trying to decide whether I should convert my new 355 with only 750 miles on it to Mobile 1. As of right now, it still leaks oil when parked in the garage. I'm wondering if converting to synthetic will make matters worse, or help me benefit in any way. Shed some light for me guys!

Gun5

iTrader: (37)

ha my 355 has 700 miles leaks to but its that front timing cover (the crank sensor or w/e) need to freeze plug it

the_merv

iTrader: (88)

How do your guy's brand new Engines leak oil? I just built mine myself, got about 2200 miles on it, and it's good.
Sounds like a little problem there, then again if a Chevy isn't leaking Oil, there is something wrong with it..

luckyou03

iTrader: (8)

synthetic oil is thinner. it will leak more. fix the leak then switch.

Gun5

iTrader: (37)

crap my car leaks with 10/30 but its that damn sensor on the timing cover grr freeze pluggg

hyperzone

^^^ as said above, synthetic will leak more. You could possibly have a totally LEAK-FREE engine and switch to synthetic and wahlaaah! --- now it leaks. Its thinner molecularly and will find places to escape. Also, you shouldn't ever break in a motor on synthetic so I've been told. The logic on that one is that it will do its job TOO WELL and never let your moving parts especially rings seat/break-in properly. I was told its better to run the car at least a 1000+ miles before making that kind of switch.

If I'm wrong about this dont shoot me, I'm just passing on what I've heard/been told.

the_merv

iTrader: (88)

I ran real 10W-30 for the first 500 miles, then a Synthetic Blend right now until the 2000 area, then I am changing it on Thursday with Synthetic Blend.

buffman

iTrader: (9)

A synthetic is not thinner. Come on guys dont we all have a big pissing match about this once and a while. Synthetic cleans better than dino. If you truly have a leak free engine going to synthetic, it will remain leak free. A synthetic makes small leaks more noticeable for the above reason, that it cleans better. Washes away any sludge or build up where a leak might be, making it worse.

Tony Shepherd

iTrader: (4)

I would go 5000+ miles before switching to synthetic. Thats just me though.

87Lt1Monte

iTrader: (1)

Tony so you never get to use synthetic then huh ?!

Tony Shepherd

iTrader: (4)

On some of my strokers a few years ago!

Maybe on this one this year! LOL

87Lt1Monte

iTrader: (1)

haha i think in a year and a half i put like 2000 miles maybe