87 stang questions

With no other info to go on (I consider location with some fluids):

Oil: 10W-30 for mild climates or 5W-30 for colder ones works for most folks this time of year.

Trans: Mercon of your choice. Some like synthetics (I do - I use Redline D4), while some prefer conventional Mercon.

Pumpkin: Your call. The spec is an 80W-90 weight, IIRC. I also run synthetic here (Redline) but it's your call. In racing, this recommendation can get modified. Friction modifier is also required with most fluids (some synthetics claim to have a modifier already in the fluid). Check with your fluid manufacturer.

Plugs: Autolite 25's are the stock replacement plug. Motorcrafts work just the same. STock gap spec is 0.052" - 0.056". You might need to buy a larger plug gapper if you havent run a car with the large gaps before (most gappers stop at around 0.045"). I'd not recommend Platinum plugs in any case. The plugs listed above are coppers (cheapies).

Gas milage: Fill it up, zero the odo. Drive it till you've got some miles on it. Fill it up again. Take the miles since the first fill up (188 in your e.g.) and divide that by the gallons it drank during that interval. E.g., 188 miles/10 gallons = 18.8 mpg.

The noise will require more info from you.

The stock 65 amp alternator is easily overwhelmed with any accessory load. The 3G's 130 amps are a nice jump and keep the lights from dimming at idle, etc.

Good luck.

873Stang said:

i have an 87 stang coupe 5spd 5.0
with 80,000miles

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first off... nice find! and pics will be needed soon...

873Stang said:

oil
trans fluid
diff fluid
spark plugs with gap

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dunno...

873Stang said:

how do i figure out gas milage? i get 188 miles on a tank!

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easy... divide miles driven since last fill up by number of gallons you put in your tank...

873Stang said:

and what does the higher alt do? the 130 over stock?

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stock alternator is like 85amps (please don't quote me on that tho)... 130 will mean more electrical power... which you will need when and if you run electric fan, sub, amp, or whatever else electrical you decide you want or need.

NICE

873Stang said:

i have an 87 stang coupe 5spd 5.0
with 80,000miles

want to know recommended :

oil
trans fluid
diff fluid
spark plugs with gap


how do i figure out gas milage? i get 188 miles on a tank!

and i have a chattering noise thinking its a lifter or a intake gasket?

and what does the higher alt do? the 130 over stock?:SNSign: :SNSign:

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your getting 12.2 MPG

188/15.4 (tank size) = 12.2

Foxfan88 said:

your getting 12.2 MPG

188/15.4 (tank size) = 12.2

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I don't think we know that for sure. We could say that this is his worst-case milage. We don't generally run the tank down to fumes, nor can we fill it to the gills. I don't think he mentioned having done either.

ok a rough estimate of 12 mpg going by what he did tell us.