Castrol GTX 5W-30, 2003 Chevy Malibu, 4,014 miles

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8,308
Location
Grand Rapids, MI
Here is the latest report from my mom's 2003 Malibu. Mostly highway driving, put on in a fairly short period of time (around 2 months) Oil filter was an oversized AC Delco PF-52. Air filter is a Napa Proselect. The sodium is from the oil, not coolant. Looks really good to me. I guess the piston slap doesn't hurt anything.
 
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15,052
Location
Canada
Really, really nice results for a GM V-6, often they have a 'dirty' signature. Lots of detergent/dispersant in that GTX to keep the engine nice and clean. Held viscosity well, too! Are you sticking with this oil in the engine?
 

ThirdeYe

Thread starter
Messages
8,308
Location
Grand Rapids, MI
 Originally Posted By: addyguy
Really, really nice results for a GM V-6, often they have a 'dirty' signature. Lots of detergent/dispersant in that GTX to keep the engine nice and clean. Held viscosity well, too! Are you sticking with this oil in the engine?
Yep, refilled with another 5 quarts of Castrol GTX and another oversized PF-52 and I plan on running it at least 5,000 miles this time around. I believe it's already at almost 2,000 miles in a matter of only a month or so.
 
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