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Engine Oil poll

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Blazer79, Mar 3, 2000.

  1. Blazer79

    Blazer79 1/2 ton status

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    Location:
    Guatemala, Central America
    I was just wondering what's everyone pouring in their engines and how often. I'm using Esso(Exxon) 20w-50 every 2500miles on my 102300 mile engine in hot weather all year. Also, if you're using synthetic oils, did you get any benefits? Any bad experiences? Also what climate are you in?

    <font color=purple>////////
    Go 79s!!!
    </font color=purple>[​IMG]
     
  2. Waxer

    Waxer 1/2 ton status Author

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    Long Beach, CA.
    I'm sportin 10w30 in my hunnie, in a California climate.
     
  3. Kyle89K5

    Kyle89K5 1/2 ton status

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    valvoline 10W-40. Every 6000 miles or so. Right now it leaks a little so I figure the things got fresh oil in it most all the time.

    Kyle
    89K5
     
  4. Todd78/87

    Todd78/87 1/2 ton status

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    Location:
    Haines, Ak
    Castrol 10w 30 4X4,, cuz I like the cool bottle. [​IMG] -- Missouri

    Todd 78/87[​IMG]
    [​IMG]
     
  5. MICHIGAN BLAZER

    MICHIGAN BLAZER 1/2 ton status

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    Valvoline 10w40 every 3000...try to @ least. My motor has either around 100,000 or 150,000....was told it was rebuilt when i bought it....not so sure the mileage seemed kinda cooky for rebuilding....60,000 when it was rebuilt??!!

    <font color=red>MICHIGAN BLAZER
    <font color=green>89 Fullsize Blazer
    87 Cherokee
    65 IH Scout
     
  6. Goose

    Goose 1/2 ton status

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    Location:
    South Central Kansas
    '73 Blazer w/3000 mile motor. Castrol 30W when its summer and 10W30 when its winter.
     
  7. drifter

    drifter Registered Member

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    I use castrol 30w in my 79, change the oil every 3,000 miles or 3 months what ever comes first.[​IMG]
     
  8. BlackK5

    BlackK5 Registered Member

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    Valvoline 10W-30 (winter), Valvoline 10W-40 (summer). Every 3000 miles w/ filter.
     
  9. Steve88

    Steve88 1/2 ton status

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    Sunny Arizona !
    Castrol 10w30, and I'm changing it with filter (Fram easy grip) every 3000.

    Used fully synthetic in a former Silverado X-Cab pickup and really didn't know a difference except in the wallet...

    <font color=red>Steve88</font color=red>[​IMG]
    88K5 Silverado (a.k.a. ThunderDog)
     
  10. Todd78/87

    Todd78/87 1/2 ton status

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    Dude,,, Fram Filters SUCK!!!!!!!!!!!!!!!!! Get like a Mobile 1 or something.. ANYTHING BUT FRAM
    If I can find a link to a study I saw, I'll post it.

    Todd 78/87[​IMG]
    [​IMG]
     
  11. DangerB

    DangerB 1/2 ton status

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    Been using Valvoline my whole life, till I talked to a havoline rep at a show. She was telling me that all they're factory racers (every class including F-1)use Havoline oil right off of the SHELF, same stuff we buy! I went and asked the Valvoline guy what they're racers use and he started feeding me crap about viscosity differences and stuff.
    The manual says to run 10W-30 in the winter and straight 30 in the summer. In TX. its almost ok for 30 year round.

    DangerBrett[​IMG]
    <font color=blue>life is a race, you have to look good and go fast!</font color=blue>
     
  12. James Rusty 79

    James Rusty 79 Registered Member

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    Down here in Texas you can run 30w summer or winter it never gets cold enough down here. I run havoline 20-50 with an AC Delco oil filter and my motor has never been rebuilt and it has 268,395 on it. I have had 4 other Chevy trucks in the shop that run the same brand of oil with more miles on them than mine because they work in the oil field and put on about 80,000 to 90,000 a year.

    James Rusty 79
    MAY THE ALMIGHT BLAZER BE WITH YOU
     
  13. Blazerbob

    Blazerbob 1/2 ton status

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    Castrol 10w-30 every 4-5000 miles with a new AC Delco filter. I have pushed a lot of motors to their limit and the castrol has always held up.

    Blazerbob<font color=blue>[​IMG]
     
  14. Glenn

    Glenn Registered Member

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    Mobil 1 with a Mobil 1 filter or ac if they don`t have the mobil 1...one. And it just keeps running and running. 180,000 miles of high rpm hell has been put on my 87 Blazer and it still runs perfect. Well, alot of it was high rpm hell anyway.
     
  15. White Knight

    White Knight 1/2 ton status

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    Pennzoil 20-50w in everything. Changed every 3 to 5 k miles Except the old "77 it gets the good stuff, straight up 30w Pennzoil and it gets changed once a year weither it needs it or not and the Old Blue has 250,000 on her and the valve cover or oil pan hasn't been off since the factory put them on..WK
     
  16. kim tate

    kim tate 1/2 ton status

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    Mobile 1 in everything but the Blazer. It gets Castrol 10W30 every 3000-4000 miles. AC delco filters.
     
  17. Goose

    Goose 1/2 ton status

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    Note on oil filter:
    I use the Wix brand 2qt size and I love it. I get an extra quart of oil and Wix is standard on some construction equipment and over the road trucks. At NAPA get the premium gold filter and it's a Wix. Does cost
     
  18. laketex

    laketex 3/4 ton status

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    Valvoline 10W-30 with an STP filter year round.

    [​IMG][​IMG]
    Durant, Ok
    '79 Blazer in progress
     
  19. chad

    chad Registered Member

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    Run Valvoline 20-50 in the winter, and valvoline straight 50w in the summer, works great, change about every 4000 because of leaks she's usually pretty clean, run the fram filters

    [​IMG]
    Cruisin Taz in a 79!
    Chad
     
  20. Steve88

    Steve88 1/2 ton status

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    Hey Todd, waiting on that oil filter study. I'm willing to change if one is better than another. I've never had a problem with a Fram, but then again I've never kept a vehicle for more than 4 years. Hope to keep ol ThunderDog forever, so lemme know which filter is best.

    <font color=red>Steve88</font color=red>[​IMG]
    88K5 Silverado (a.k.a. ThunderDog)
     

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