help with oil change

[masaki]

Hi, my name is Masaki. I'm in this forum, I request some help, because I want to change the oil type in my car, I have a ford taurus SW vulcan engine 3.0 V6 1988, (108987Km yes 108987Km not more) my father usually put Shell Helix 25W-50 (mineral) in this car, but I think is a heavy oil for this engine, I have read that this engine use 5W-30 SAE SG (original manual from a friend) and I have read in tauruscarclub of america that ford change the oil recomendation for some vehicles (1991 - today) to use 5w-20

so now i'm not sure what to use, I have the followinf option.

Castrol Magnatec (synth) 5W-30 SAE SL
Helaion Synthethic (Synth) 5W-40 SAE SM (repsol)
Motorcraft (Synth) 5w-20 SAE SL

consider in my country (Lima peru) all year range of temperature:
15ºC - 32ºC

 

[tsmay51]

Assuming there is no major difference in your taurus than one here in the states, you probably would be fine with any of the three you mentioned.

 

[gregmp]

Use the heavier is for sure. That engine is not speced for 5w-20 and your temp. range is very warm. So I would use at least the 5w-40.

 

[Pablo]

A good 10W-30, 10W-40, or even 15W-40 would work fine as well as the 5W-30 and 5W-40. Indeed I wouldn't use a 5W-20.

Not sure what "Helaion" is.

 

[BennyL]

i would stick with castrol 5W-30. can't go wrong there. 5W-30 is a good oil for your temp range too.

 

[masaki]

Hi tahnks for te replays, helaion is a brand name oil, this are on sale in repsol services