2006-08-25 12:44:48 · 11 answers · asked by matthew w 2 in Cars & Transportation ➔ Maintenance & Repairs
it is a ford xf 1985 model.
2006-08-25 12:52:39 · update #1
It calls for unleaded. Does the engine knock or ping on acceleration? If it does, move the timing or use and higher octane.
2006-08-25 12:50:32 · answer #1 · answered by geoff 3 · 0⤊ 1⤋
Ok, your truck takes unleaded, im 110% sure!!!
The reason tetra-ethyel lead is used in racing fuel becuase it is a great way to increase the octane rating of the fuel cheaply.
Lead was used in older cars because the compound of the valve seats was made out of a special alloy that was soft(easy to machine) when lead was put onto the valve seats, it would make the alloy hard, so it would withstand wear.
If you try putting UN leaded gas in a car with "softies" (which are usually pre 19 69-70) they will make them incredibly soft, and your valaves can "pull through" and/or warp so they do not seal right.
2006-08-25 22:05:30 · answer #2 · answered by jw_loves_trains 2 · 0⤊ 0⤋
Leaded fuel is still available I run it in my race truck, it has a very low amounts of lead all engines now are designed to run on unleaded fuel if the motor pings up the octane
2006-08-25 20:16:22 · answer #3 · answered by davecat350 4 · 0⤊ 0⤋
Yor motor was originally made for leaded petrol, but nowdays all unleaded petrol is made to be compatable with all pre- unleaded models
2006-08-25 20:09:01 · answer #4 · answered by wolfs_on_mars 2 · 0⤊ 0⤋
you cant get leaded gas anymore it is all unleaded so it does not matter what kind you put in it you have regular unleaded medium grade unleaded and super unleaded you can use any of them in you car
2006-08-25 20:00:03 · answer #5 · answered by firefightingexpert 5 · 0⤊ 0⤋
If it's less than 20 years old, it's unleaded.
2006-08-25 19:50:31 · answer #6 · answered by JennyZ 2 · 0⤊ 0⤋
theyre all regular unleaded unless its a high performance engine.
2006-08-29 15:26:36 · answer #7 · answered by duc602 7 · 0⤊ 0⤋
tru putting sugar in the gas tank, that will let you know if you need leaded gasoline or unleaded by the sound of the motor.
2006-08-25 19:51:27 · answer #8 · answered by sivracious 4 · 0⤊ 2⤋
Well, it'd be easier, if you told us the year of the vehicle.
2006-08-25 19:49:20 · answer #9 · answered by Silverstang 7 · 0⤊ 0⤋
I love chewing gum
2006-08-25 19:49:30 · answer #10 · answered by Tommy Boy 4 · 0⤊ 2⤋