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97 saab

  1. Oil grade concistancey

    NG900 & OG9-3 Workshop
    I post this in the wrong forum
  2. Oil change consistency

    C900 Workshop
    '97 SAAB 900s 2.3l. Maintenance work done the day I bought it used 10W-30 3000 mile oil changes at jiffy lube claim 'manufacturer suggest full synthetic' but I stuck to 10W-30. Traveled I-90 across from Washington to New Hampshire with oil change in Ohio. My question is: in Ohio I change to a...