8/15/2013
ODO: 0025837
Decide to go with synthetic engine oil this time around on the oil change cycle.
Headed to Texas with the truck and wanted to see if switching from conventional 5W-30 to Pennzoil Platinum made any difference in mpg.
Even if it down’t I should be able to recoup the added expense with an extended oil-change interval.
Up until now Bedrock’s 5.7L has had the oil changed every 3,500 miles. Hope synthetic takes that to 7,000 miles.