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I suggest that you use a high mileage oil(maybe Quaker state or Castrol),in addition use Lucas oil additive.You will notice a big difference in the way your motor performs.

Personally I have an 89' with 300+ on it and the only change I've made was running synthetic in order to run in Edmonton's cold winters. I still use Mobil1 10-30 at home in BC I never had a problem with regular oil.

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16y ago
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13y ago

Go with straight 30 unless you are in a colder clime. Synthetic far superior to mineral for longevity but very costly. Use a multi if you need the thinning due to low outside temps. Going with a thicker oil (30 vs 40 ) on older engines, helps with sealing. I always go to 30 on any engine when it gets older.

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17y ago

10W-30 Pennzoil works fine..............remember the transfer case takes Dextron 111 automatic Transmission Fluid, not regular gear lube.......Mike

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16y ago

4 cylinder is 5W 30 6 and above 10W30

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11y ago

10w30

10w30

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13y ago

10W30

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15y ago

10w30

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14y ago

10w30

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14y ago

10w30

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11y ago

10w30

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