is there a big diff between the 2??

I noticed the guys at the shop were using it in my truck and the manual says 5w-30, they told me that's just a tad thicker..

what do you guys think?


p.s. I use pensiol synthetic

------------------
97 F150 XLT: Two-Tone Green and Tan, V6 4.2L Auto Trans 4X4, 3.55 gears, 265/75/16 Dueler AT's, Edelbrock Performer IAS Shocks
MODS:Airaid FIPK, Superchip, Ravin Z55 Exhaust SI/SO
GOODIES:Kameleon Head Unit w/12 disk cd changer, JVC 4ch 560watt poweramp, Bazooka Tube, Boston Acoustic 5x9's, Tinted Back, Westin Nerf Bars..

 

you'd better make them use 5w30 in the winter time---those small bearing clearances our engs. are supposed to have(i've never measured them) will need the "5" weight then.

------------------
2001 Lightning, silver, escort 8500, ranger 2950dx dual band radio, wilson 2000 ant., bot/picked up on 05/08/01, 1997 f150 xlt 4.6L 4x2 with: a/f one fipk, superchip, optima battery, bbk 75mm throttle body, edelbrock ias shocks--2001 lightning to come(she came--see above)