Humming sounds like drive train, not valve train. If oil not lubricating, valve train should clatter and bang, not hum. (Note: could be stopped up oil passages rather than watery oil). I'd check wheel bearings, U joints, differential, and transmission. Could also simply be tires -- all season and off road treads significantly noisier than touring tread. Re: light weight oil -- SAE 30 generally recommended by manufacturers down to 32 degrees. That pretty much covers all of us southerners. IMHO no real problem for few nights it drops into 20's. Is no secret I don't trust multi-viscosity oils. But truth be told biggest factor is regular changes, not viscosity rating. Any oil -- even straight 30 weight -- is going to break down, absorb moisture, become acidic, etc if left in engine too long. FWIW: racing crowd generally runs single viscosity 40 and 50 weights. But their engines operating in totally different environment. Do you change own oil? Need to, especially on a (full size) truck. Don't even jack up. Can change mine less than 20 minutes. Motorcraft FL1 filter costs less than even a house brand. City recycles old oil back in bottles to burn in garage furnace (curbside pickup). Only procedure easier to perform is filling gas tank (but costs nearly 4 times as much!). Bill Robertson #5939 >--- In DMCForum@xxxxxxxxxxxxxxx, Farrar Hudkins <fhudkins@xxxx> wrote: > Bill, > > You wrote: > > > do you really want to put 5 or 10 weight oil in > > anything? Maybe if you lived in Nebraska. > > I've been using Castrol GTX 10W-30 in my Ranger for the past year. Are > you saying I'm in too hot a climate for this? > > Between the Fram filter, the 10 weight oil, and the mysterious humming > growing in intensity, I'm getting very nervous about my truck. Thinking > perhaps the 1200-mile trip for Xmas may not go so well. :( > > Farrar > > > -- > Farrar Hudkins > Announcer/Producer > 89.9 WWNO FM New Orleans / 90.5 KTLN FM Thibodaux-Houma > Live audio stream @ www.wwno.org Yahoo! Groups Sponsor <http://rd.yahoo.com/SIG=12chcai62/M=259395.3614674.4902533.1261774/D=egro upweb/S=1705126215:HM/EXP=1071254186/A=1524963/R=0/*http://hits.411web.com /cgi-bin/autoredir?camp=556&lineid=3614674?=egroupweb&pos=HM> <http://us.adserver.yahoo.com/l?M=259395.3614674.4902533.1261774/D=egroupm ail/S=:HM/A=1524963/rand=285511694> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
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