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  1. #21


    i personally wouldnt let a quick lube even look at my truck. i use 5w30 valvoline high mileage or 10-40 for summer months also use a wix vette filter. i found on my k5s 400sb it made more pressure with the vette filter plus it comes with a cool sticker20w50 diesel oil in completely worn out motors. do it myself. i take pride in that kinda stuff

  2. #22


    I use ACDelco Dexos its a new synthetic blend, rumor is its made by Mobil, I use ACDelco filters and I do it at the shop after hours
    Friends dont let friends drive fords!

    Proud GM Technician

  3. #23


    In my 1985 military truck i add 16oz of sea foam and drive it 30 min then change oil and i use Moble Delvac 15w40 cause that truck is a diesel and for the 98 surburban i use pennzoil full synthetic.It takes me over a hour to change oil cause i have a bad back so i take my time i just dont trust anybody these days.Last time my wife paid for full synthetic and thay put in reg oil<<2006 kia sorento 4x4.Changeing oil is about all i can do anymore from the back pain.
    1998 SURBURBAN LT FULLYLOADED 6 INCH LIFT AND 35 INCH MUDDERS-1985 M-1028 MILITARY TRUCK UNDER 38 K MILES NO RUST OR DENTS RUNS LIKE NEW.2004 XL-1200R 1 OF 7 MADE BY HARLEY WITH 100 HP-1977 XL-1000 NAMED PAW PAW..We own only 4x4s dont know why just turned out that way the other 2 aint chevy so i wont list.1987 MONTE CARLO SS 555 CI BIGBLOCK 675 HP 700 QT BUILT BY DOUG HERBERT IN NC.

  4. #24


    Royal purple full synthic for my silverado,65 c10 and all my cobras, that stuff is great I used to change the oil n my track car every race, since I switched to the purple I go every other
    2009 chevy 1500 z71 4x4
    2.5 ccm level,2.5 inch rear blocks 305/60/18 coopers stt,Debadged,10 series flow w/dual exit in front or right rear tire, KN CAI, diablo InTune, 18% tint all the way around ,spec-d euro headlights with black housings,winjet smoke LED tail lights,putco LED third brake light smoked, fab fours front bumper with 10k warn winch, RK sports ram air hood
    1965 c10 swb, zz4 350 with the hot cam and fast burn heads and a 780 Holley on top, richmond super street 5 speed,restorod

  5. #25
    Jr. Engineer
    Join Date
    Mar 2010
    Cochrane, AB


    I've been using Mobil 1 synthetic 5w-30 for years. Winter or Summer. I recently switched to Castrol GTX Dino Oil for 3 oil changes just to switch it up and clean things out a bit. I guess my thinking there is like the thinking behind switching shampoo every so often. "Once" a year I add sea foam for three oil changes in a row. I'll try to add it before a decent drive (100 km or so) and then change the oil after the drive. I do that for 3 oil changes and then not again for a year or so.

    I have one more Castrol oil change and then back to Mobil 1. I also use Mobil 1 filters, always.

    2004 Silverado LS 5.3L Z71 Crew Cab
    260,000+ km

  6. #26


    I used to insist on Havoline oil. Recently, I have switched to Kendall 50/50 blend. my uncle (a former scientist at Gulf Research) says that Kendall is one of the best you can get. I recently found it at O'reilly auto. So Kendall 5W30 and an AC/Delco filter.
    "It went together didn't it? Well then there has to be a way to take it apart!" - Me.

    Check out my image gallery HERE.

    "The true measure of a man is how he treats someone who can do him absolutely no good." ~Samuel Johnson (1709-1784)

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