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Old 08-17-2013, 05:45 PM
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Spark plugs and oil type for 454HO?

Hi all,

Can anyone recommend brand/type plugs and oil for a 454HO with rectangle-port heads? I bought my 1990 TriStar 220 a few weeks ago and want to complete a tune-up before I take it out again.

Thanks!
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Old 08-17-2013, 05:48 PM
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Old 08-17-2013, 05:50 PM
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WHAT manual!!
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Old 08-17-2013, 07:11 PM
FrankSchwab FrankSchwab is offline
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Upper left corner of this page - click "Downloads", "Resources", "Owners Manuals". There isn't one listed for the 1990 Tristar, but the 1989 Tristar or 1991 Maristar 240 manual have specs for a 454 that probably apply to yours.
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Old 08-17-2013, 07:29 PM
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Oh no way thanks, that is awesome! I love TT!
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Old 08-17-2013, 07:45 PM
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I would go Valvoline VR-1 synth - or dyno - SAE 30 or Synth 10w30 - has lot's of ZDDP
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Old 08-18-2013, 12:53 AM
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Quote:
Originally Posted by mikeg205 View Post
I would go Valvoline VR-1 synth - or dyno - SAE 30 or Synth 10w30 - has lot's of ZDDP
I have Mobil 1 full synthetic 10w30. Is that OK?
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Old 08-18-2013, 09:55 AM
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Quote:
Originally Posted by bowtie guy View Post
I have Mobil 1 full synthetic 10w30. Is that OK?
I would say no. 800/900 - but not to spark and oil debate...

http://www.mobiloil.com/USA-English/...duct_Guide.pdf

VR-1 has 1100/1000 for the older engines... 30% more than Mobil 1.

I also add a bottle of Hyperlube Zinc Replacement. http://www.hyperlube.com/c3/Zinc-Rep...ditive-c7.html

I believe it's the same stuff Royal Purple calls Synerlic Technology.

I go synth... just because synth oil base can stand up to an overheat situation over dyno... but that's just me...

I like Royal Purple - but I can't find ZDDP numbers on them... plus I believe they use Hyperlube and call it Synerlic Technology
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Old 08-18-2013, 11:18 AM
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Mobil One 15w-50 has plenty of ZDDP.
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