Supertech 5w-30 Blended in an '07 Tahoe

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dpx2

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Another newbie question. I usually run Supertech full synthetic 5w-30 in my tuck with an ac delco filter. I guess on my last oil change (30 miles ago), I grabbed Supertech's 5w30 blended and did some reading on it and it's not dexos licensed.
Question is, should I do another oil change and put in dexos approved oil, or run it for 5k miles like I usually do and not worry about it for this 1 time. TIA
 

avalonandl

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As long as it is a pure sythetic its no big deal. You can change early like 4000 miles. Any of the pure synthetcs will be fine.
 

Geotrash

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As long as it is a pure sythetic its no big deal. You can change early like 4000 miles. Any of the pure synthetcs will be fine.
That's the thing though - it's a synthetic/dino blend in the OP's case. And what we're saying is it's not a problem for this oil change cycle at all.
 
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swathdiver

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When that 2007 came out the spec was for blended oil. It was later upgraded to full synthetic in 2011. It was only in the last year or so where GM started recommending 75W90 full synthetic for the front axle in our older cars for some reason instead of 80W90 conventional.
 
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dpx2

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When that 2007 came out the spec was for blended oil. It was later upgraded to full synthetic in 2011. It was only in the last year or so where GM started recommending 75W90 full synthetic for the front axle in our older cars for some reason instead of 80W90 conventional.
Good to know! I looked in my manual and it says 5w-30 and the old GM6094M standard, which I didn't know was a blend. I used 80W90 conventional in the front diff. I took it for a test drive today and it didn't blow up, lol. Oil pressure was 42 at a cold idle, 35 at a warm idle. 50 psi when giving it gas driving around town. I drive like an old guy, well, because I am. Oil pressure is what I'm used to seeing. Thanks for all the help guys! Being new to these maintenance tasks, it helps to have input for peace of mind.
 

B-train

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I put 75-140 full synthetic in my 2008 Denali because that's all I had and it's made it up many mountains and down numerous backroads without any issues. I'm sure there's a little more rolling resistance when cold, but given the front diff wear on these I figured it won't hurt. I'll go back to the correct weight next time around.......
 

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