09SMOKINHEMI
Senior Member
The signature series along with the E/A filter claims drain intervals of 25K miles. i have used this oil since i purchased my truck, however i don't go 25K miles, more like 15K miles when changing it. Not sure if i could go longer or not, but that's just thought i would shave 10K off for good measure. For 7 quarts and the EA filter, it's about $88/oil change.
The XL series claims drain intervals of 10K miles. For 7 quarts of XL and a WIX filter, it's about $61/oil change.
Assuming I drive 30K miles/year, i would do 2 oil changes under the signature series ($176), or 3 oil changes under the XL ($183). minimal difference in money.
However my question is, which would be better for my truck? doing the 2 with the signature series, or the 3 with the XL?
The XL series claims drain intervals of 10K miles. For 7 quarts of XL and a WIX filter, it's about $61/oil change.
Assuming I drive 30K miles/year, i would do 2 oil changes under the signature series ($176), or 3 oil changes under the XL ($183). minimal difference in money.
However my question is, which would be better for my truck? doing the 2 with the signature series, or the 3 with the XL?