Normal Oil leak

05_2500HD · March 13, 2006

Is it normal to have an oil leak at the rear main seal at only 8K ? I have a 6.0L, changed the oil once with dino oil and now have Mobil 1 5-30. The bellhousing area is wet.

Thanks !

GM-Tech · March 13, 2006

An oil leak is not normal. GM has finally gotten the sealing right and today's engines are usually bone dry.

05_2500HD · March 14, 2006

Thats what I was afraid of....I HATE to have a new truck ripped apart that much to fix a rear main seal soo soon

Mighty HD · March 14, 2006

I hhave the exact same problem.

Idiot dealer says they can't find it, even with the dye. I cleaned it up changed the oil...spotless under the truck for the first 50 miles. Wet again and you can see the dye under a blacklight.

Rear main, oil pan, and oil filter adapter is leaking......I am going to ditch the Mobil 1 and go back to Dino once they fix it.

I do NOT want to have this truck torn apart--needless to say I was quite pissed off.

05_2500HD · March 14, 2006

I hhave the exact same problem.

Idiot dealer says they can't find it, even with the dye. I cleaned it up changed the oil...spotless under the truck for the first 50 miles. Wet again and you can see the dye under a blacklight.

Rear main, oil pan, and oil filter adapter is leaking......I am going to ditch the Mobil 1 and go back to Dino once they fix it.

I do NOT want to have this truck torn apart--needless to say I was quite pissed off.

<{POST_SNAPBACK}>

I am thinking the SAME thing...I NEVER have this problem with dino oil....

mmmikkke · March 14, 2006

I hhave the exact same problem.

Idiot dealer says they can't find it, even with the dye. I cleaned it up changed the oil...spotless under the truck for the first 50 miles. Wet again and you can see the dye under a blacklight.

Rear main, oil pan, and oil filter adapter is leaking......I am going to ditch the Mobil 1 and go back to Dino once they fix it.

I do NOT want to have this truck torn apart--needless to say I was quite pissed off.

<{POST_SNAPBACK}>

I am thinking the SAME thing...I NEVER have this problem with dino oil....

<{POST_SNAPBACK}>

I *never* have this problem with M1.

Keep the blame where it's due: GM. It's not Mobil's fault.

skills4lou · March 14, 2006

My 94 Suburban 350 and 98 K3500 454 both leak at the rear main. Sure, I could tear the thing all apart and replace the seals, or I can put an extra quart of oil in between changes. Hmm... $2 every few months, or a couple hundred $$$ for new seals. Easy choice for me. The newer engines do seal better, and at only 8K miles, I'd be using that warranty.