| 
            		   
             
	            Group: Forum Members 
	            Last Active: 3 Months Ago                     
                Posts: 34, 
                Visits: 4.9K 
             
		 | 
					
             
                I have a 272 y block that was rebuilt a few years ago (probably less then 5000 miles) and I was wondering what grade of oil I should be using. I having been using 5w-30 on the advice of valvolines headquarters but I’m worried it might be to thin. Should I be using 10w-30? Any advice?          
			    				
			    
               
                                                                                               
                                  
               
           
                    
          	 |