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Author Topic: Should I change the oil or not?????  (Read 1699 times)

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Offline Fowlhunter

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Re: Should I change the oil or not?????
« Reply #10 on: February 17, 2009, 10:56:58 AM »
What I was getting at there, is 10W30 is SAE rated down to -20* and on older "high mileage" motors get some added benefit from the slightly heavier viscosity from the 10W30....

as far as my build goes, I also pull from the oil pan for my blower so that plays a factor in my particular case...  :winkani:

There are times (during the winter) where the temp gets below -20deg here in St. Charles but not enough for me to justify converting to 5W30 in the winter then back to 10W30 in the summer.  I've never had a problem using 10W30 all year round.
02 Z-71, Pewter, Cladded, Fully Loaded. Mods:  ArmorThaned Cladding, FT Amber DRL's,Mag light mod,Bug Deflector,Door vent shields,Z-71 sun visor decals,Z-71 mountain decals on rear quarters,F@rd torsion bar adjusters,Front KYB shocks,1-1/2" rear coil spring spacers,rear KYB shocks,BFG A/T LT285/70R17, rear bumper cup holders, 05+ efan mod, GMT900 Front Brakes with Drilled & Slotted Rotors on all corners.


Offline FlaBouy

Re: Should I change the oil or not?????
« Reply #11 on: February 17, 2009, 12:05:18 PM »


If it got anywhere near -20* in my parts, I would have to pack up and move south..... The only ice I want to see is on my frosted mug and in my sweet tea.... :goodstuff:


2004 Nekkid Z-71 with reduced aerodynamics, improved traction, and enhanced airflow........


Offline Flint 4X4

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Re: Should I change the oil or not?????
« Reply #12 on: February 17, 2009, 12:26:24 PM »
My "change oil" indicator has been on for two weeks     :uglystupid2:

I average about 3,000 miles a year but some hours at idle, I'll get it changed soon at a Valvoline Instant Oil Change and use the cheap stuff. My oil pressure is fine and the engine sounds the same as always. I'm not buying synthetics when it's way cheaper to change my oil at 3,000 miles once a year and my oil looks clean enough I could have used it another 3,000 miles easy.

I guess what I'm saying is look at your used oil when you change it, listen to your engine. Check your coolant, I had that happen once on my S10. Damn rear engine seal blew and antifreeze was going thru the engine into the oil and out the tailpipe (intermittently so it was hard to notice)

Offline Fowlhunter

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Re: Should I change the oil or not?????
« Reply #13 on: February 17, 2009, 01:44:34 PM »

If it got anywhere near -20* in my parts, I would have to pack up and move south..... The only ice I want to see is on my frosted mug and in my sweet tea.... :goodstuff:

I gotcha man!!!  Thanks again!!
02 Z-71, Pewter, Cladded, Fully Loaded. Mods:  ArmorThaned Cladding, FT Amber DRL's,Mag light mod,Bug Deflector,Door vent shields,Z-71 sun visor decals,Z-71 mountain decals on rear quarters,F@rd torsion bar adjusters,Front KYB shocks,1-1/2" rear coil spring spacers,rear KYB shocks,BFG A/T LT285/70R17, rear bumper cup holders, 05+ efan mod, GMT900 Front Brakes with Drilled & Slotted Rotors on all corners.

Online MyBigToy

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Re: Should I change the oil or not?????
« Reply #14 on: February 17, 2009, 03:50:13 PM »
I would be comfortable with using 10W30 synthetic at -20* but dino 10W30 seems to thicken much more at low temperatures to me.
2002 LPM Z71, factory 4.10s - Magnacharger w/3" pulley, TOG's headers, 216/224-.551/.551-115 cam/pushrods/dual springs/titanium retainers, built tranny, Yank TT2600 stall converter, 24K GVW Tru-Cool tranny cooler,  Flex-A-Lites, ProCold intake, MSD wires & TR6 plugs, 20" Panther Juice 6's, 2.8" rear lowering springs & assorted hardware, J&J Enterprises stainless grille, body-color painted taillight covers. Self-tuned with HP Tuners software.

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Offline Fowlhunter

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Re: Should I change the oil or not?????
« Reply #15 on: February 17, 2009, 04:01:18 PM »
I would be comfortable with using 10W30 synthetic at -20* but dino 10W30 seems to thicken much more at low temperatures to me.

Hey Joe!  What's been going on?

I've always used it (10W30) and like I said earlier I don't feel like switching what I use from winter to summer.
02 Z-71, Pewter, Cladded, Fully Loaded. Mods:  ArmorThaned Cladding, FT Amber DRL's,Mag light mod,Bug Deflector,Door vent shields,Z-71 sun visor decals,Z-71 mountain decals on rear quarters,F@rd torsion bar adjusters,Front KYB shocks,1-1/2" rear coil spring spacers,rear KYB shocks,BFG A/T LT285/70R17, rear bumper cup holders, 05+ efan mod, GMT900 Front Brakes with Drilled & Slotted Rotors on all corners.




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