3.0 engine oil

[porkchop]

can someone tell me what oil to use in the 2001 3.0 gm motor , is sae30 good or 25w 40 or what thank you keith

 

[olddogmike]

Re: 3.0 engine oil

I have a 1995 3.0LX mercruiser, GM engine and have used only 25W50 mercrusier oil in it. I don't think I would use anything lower in viscosity than 25W40.

 

[porkchop]

Re: 3.0 engine oil

thank you mike i appreciate it

 

[dhammann]

Re: 3.0 engine oil

Stay away from multi-grade, use only 30wt that is what the engineers that designed this engine recommend. Don't let anyone talk you into "snake oil" treatment!!

 

[denniz]

Re: 3.0 engine oil

Merc recommends there 25w50. In higher reving engines weve seen alot of oil loss with it. Id go with 30w.

 

[porkchop]

Re: 3.0 engine oil

thanks rod knock and bigd i got some quacker state sae 30 does that sound ok or are we looking for a 25w 30 thanks again keith