It's been 5100 miles & 6 months. Got about 2 ounces again.
Did an oil & filter change too. Sent a sample to OAI/Polaris lab for analysis. I'll post results when I get'em.
This summer I'm gonna change my VLOM cover & gasket, install a new harmonic balancer pulley, bolt, and seal. Timing cover gasket too.
I did the oil pan and rear main cover & seal 5 + yrs ago, and all is well still.
Try Mobil 1 5w-50 oil, readily available online, walmart, etc.
The second number (50) is an indication of the oils thickness/viscosity at "operating temperature" 100*C/212*F.
The first number (5) is an indication of the oils thickness/viscisity at 40*C/104*F.
I'm not having a problem putting gas in? Never have.
Oct of 2018, the previous owner had recently installed a ACDelco/GM23481275 Vapor Canister Vent Valve. Then a month later I replaced the gas cap w/ACDelco# GT330 and the vapor cannister purge valve (located on top of the driver side fwd valve...
I did nothing and fuel guage has been working perfectly for the last 4 tanks of gas and 1100+ miles.
Love the AWD in snow country.
I'm still planning to install a new fuel pump/module soon.
The new improved driver side valve cover makes a night a day difference in what I catch in my catch can. With the original 07 L92 vc I was catching 1-2 oz every 100 miles. With the new and improved vc I catch about 2 oz every 5k miles.
Here's the GM TSB with pics of the valve covers on page 2...
keep the tranny perfectly straight and level when separating it. The input shaft is in the tranny and torque converter. If you put it in a bind something's gonna give. And that wouldn't be good.
I do a lot of towing with our motorhome. I use a https://www.weigh-safe.com/ hitch that has a gauge in it that reads tongue weight so I can get the tongue wt correct.
07 Yukon Denali w/193k miles
Fuel gauge has started acting wonky (again). When half full or less it reads 7/8. I filled up and now it reads empty. No other issues. Probably the original fuel pump/sender module. I guess its time for a tank drop and replace pump sender module with AC Delco MU1639...
If it is, here what I changed when I did the job 5+ yrs and 63k miles ago:
Installed rear main seal & cover – Dorman 635-518 - $43
https://www.tahoeyukonforum.com/threads/rear-main-seal-job-pan-etc-07-yukon-denali-6-2.108334/
Performed GM TSB # 10-06-01-008M...
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