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Join Date: Oct 2007
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question about fluids...

I have a 73 2.0L basically stock with hydraulic lifters and a mild cam. I am curious about what type of fuel (octane rating) you guys run. It runs ok on the 87 but I saw a sticker that says 91 recommended so I have been running 92 octane but cant really tell a difference.

I am also looking for oil recommendations type and weight, as well as transmission fluid recommendations.

Thanks!
Old 10-29-2007, 04:15 PM
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The sticker says 91 RON, which is not the same as American 91 octane.

They run fine on regular.

If you get pinging and you are not running a high compression engine, then the engine needs tuning (starting with timing).

Premium fuel is a waste of money.

I run 20w-50 Castrol. If you want something more special, use Brad Penn oil.

In the tranny, use 80w90 GL5 (NOT GL4) or Swepco 201.
Old 10-29-2007, 04:49 PM
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Well... looks like I am going to switch back to the 87 octane then.

Is there any advantage to running synthetic or a synthetic blended oil?
Old 10-29-2007, 05:11 PM
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GL-5 in tranny, not GL-5 plus either

There are those that say thicker oil will not give any benefit, other than higher oil pressure and temps, which are not necessarily benefits. That said, I have run 20-50 in all my air cooled cars.

Syn gives longer change interval, I see no benefit for my purposes.
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Old 10-29-2007, 05:21 PM
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FWIW, I do occasionally run higher octane fuels because they tend to add more toluene, which does a nice job cleaning things out according to my buddy who works for Petro-Canada.
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Old 10-29-2007, 06:07 PM
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Quote:
Originally Posted by Komenda Fan View Post
FWIW, I do occasionally run higher octane fuels because they tend to add more toluene, which does a nice job cleaning things out according to my buddy who works for Petro-Canada.

I like to run a bottle of fuel injector cleaner through just before oil change.
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Old 10-30-2007, 11:35 AM
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