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J-150

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Posts posted by J-150

  1. On Tuesday, December 18, 2018 at 2:29 PM, Sevensecondsuv said:

    And we all would have said the same thing in 1994 when 200 hp pushrod 350/351 engines were considered more than adquate. But now 400 hp is more or less the standard in 1/2 ton applications and yet everyone wants more.

    And earlier than that contractors and farmers made due with 100hp straight sixes with 3 on the tree.

     

    These days what I see are 350hp pickups racing with their boat trailer at 85mph. So perhaps it's just about meath ears that want Ferrari speeds with a 10,000# trailer and 2000# in the bed.

  2. 1 hour ago, fordmantpw said:

    That makes absolutely no sense.  A recall is completely different from finding out late in the game that your electrical system can't handle the load.

    The difference WHEN the issue is corrected. Bitching because they are fixing the problem before the product is sold is a little unfair. They are fixing it which is the most important thing. No manufacturer is without fault in screwing up the engineering at one time or another.

  3. For the record I have a chemistry degree.... That being said.... octane rating in gas has absolutly nothing to do with quality. This is a huge misconception. It is strictly based on the compression ratio of the engine. Higher octane is needed for high compression engines to prevent pre detonation in the combustion chamber. As gas compresses it can ignite on its own before the spark plug fires. This is what causes knock. A higher octane prevents this from happening. This is why to always use what is recommended in the manual. Using a higher octane more than what the engine calls for would work counter productive to engine performance and in gas mileage, not to mention the waste of money for premium gas. New engines can run on lower octane than what they are rated for because the computers can detect knock and they can retard the timing of the spark plugs to compensate. This is done at the expense of performance and MPG though. our new navies say 93 for max performance so I would stick with that. Besides, cant really argue about trying to save money on gas when we are driving a 90K truck... :victory:

     

    So bottom line.... read the owners manual and follow directions.. :)

     

     

    As for ethanol... For post 2000 and up cars not so much an issue since they were designed to use up to e15 ethanol in gas. However if you do have access to no ethanol, then filler up... Good luck finding it though...

    Some anti-knock sensors retard spark timing. Some just add more fuel.

     

    That and with the advancement in computers, higher octane is managed by the engine.

     

    You will find many domestic engines actually run better on the higher octane. Lower octance being recommended for cheap owners.

     

    On ethanol, no conversation is complete without mentioning moisture.

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