Synthetic oil

[Recmar1]

My truck is about due for an oil change and someone mentioned I should try synthetic oil. Used SO in my previous car which was a BMW and that was the standard. I know that SO will last longer between changes, but does anyone know of any pros and/or cons.

[GLBLWARMR]

I am sure that you will get alot of different answers on this question. I will not give the scientific details like I am sure that others can and most likely will. Anyways, I have not used SO in any of my vehicles and I have a couple of vehicles with over 150,000 miles on them. I have been a Quaker State boy all my life and I still use it to this day. Regardless of what they say you can go in between oil changes I still change my oil every 3000 miles, plugs every 20,000 and keep up on all the other preventive maintenance. I do not see the need to spend the money on SO when in 3000 miles I am going to drain it anyways. I know what all the manuals say but I am superstitious and will continue to be. If it ain't broke don't fix it.

[HUMMERcustoms.com/TAZ]

I agree with GLBLWRMR if I spelled it right. I do use Royal Purple in all areas of H2 though because I'm running such high boost, HP and Torque. I do as He says and do not extend changing times. I follow the old school book.
I also have several trucks well my rule is put 250,000 miles before I get another work truck and have run Penzoil on the last 2 which one was a diesel. Niether of them would use enough oil in 3000 miles that you could really notice. I did use K&N air filter systems. The present 99 Silverado which is a everyday truck not work truck has 150,000 miles on it and oil changes extended to 5,000 miles. Penzoil used along with K&N, Hypertech, dual exhaust, flowmasters and all the peformance stuff i can run on it. Will be tuning it soon with HPTUNERS software since i got it in from my sponsor of H2 to use. The Silverado is for peformance fun and love to see the rice rockets face when i run off from them. I use Penzoil and change plugs sooner than book says. It just rubs Me wrong to run spark plugs
100,000 miles just like I cannot run K&N filters 50,000 miles before cleaning. I use new tech. with old rules and seems to work well.
I most likely should use Royal Purple on the 99 Silverado but, I used Pen on it from new and makes Me feel wierd to think about changing what the old girl has been used to. I use regular oil in everything I just SO in H2 because of all the real high stress that is put on it occasionally. Hummer sends it out of factory with GM SO in it in certain areas I just figured it would not hurt to go 100% SO in this rigs circumstances with Us pushing it with more and more boost and water/methanol inj. all that kind of stuff.

I also saw on Speed Channel it was HP TV show where they took a camaro and ran it on a dyno with regular oil then switched to SO oil and the rig gained 8 HP just by changing to Royal Purple, for what it is worth.

TAZ

[DRTYFN]

Mobil One synthetic and a K&N oil filter.

http://www.mobiloil.com/USA-English/...nce_5W-30.aspx


http://www.knfilters.com/search/prod...x?Prod=HP-1007

[MONSTERMATT]

amsoil synthetic and k%n filter

[DRTYFN]

I've tried Royal Purple and Amsoil in the past(I really cheered for Amsoil, too), but I've gone back to the tried & true Mobil1 synthetic - mainly because a case of it is $23 at Costco.

[Big Z]

Originally Posted by Recmar1

My truck is about due for an oil change and someone mentioned I should try synthetic oil. Used SO in my previous car which was a BMW and that was the standard. I know that SO will last longer between changes, but does anyone know of any pros and/or cons.

http://www.elcovaforums.com/forums/s...searchid=58757

Synthetic EVERYTHING! ...Pro's! it's Mo Better than Dino!....Con's...it costs a little more! I just switched to Synthetic in my boat--Second oil change--made a VERY Noticable difference!---The big one!--It's running cooler, and Mo Better!

Oil changes @ 5-6000 miles----More if you do oil analysis!---But this is true with ANY OIL!

The Pros outweigh the cons!

[Recmar1]

F5Fstop - brilliant. Thanks, much for the detailed info.