Weight of oil - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Nichboy · 04-11-2002, 03:29 PM

What weight of oil do you guys run in your trucks in the summer time and who makes the best oil filter.

NSANE68!!! · 04-11-2002, 03:33 PM

Castrol 20/50 weight, year round.

Mountain Man · 04-11-2002, 08:05 PM

Hands down - The best oil to run in summer and winter is Mobil 5W30 Synthetic.

Nuf Said.

04-11-2002, 09:41 PM

WOLFS HEAD 20/50 YEAR ROUND AND WIX FILTERS
ARE THE BEST!

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72BLUE C10 SWB
86BLUE K10 LWB
87RED S10 SWB
89RED S10 SWB

Reumster · 04-11-2002, 10:45 PM

Running a 5-30 synthetic is dyno proven to give you 5hp over 10-40 regular oil, and it lubricates better. Trust me.

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1972 2wd Blazer, 350/700R4/3:73 posi/NOS. Power is nothing without control!

Southpa · 04-11-2002, 11:05 PM

Depends on where you live, cold places need thinner oil. I live in a moderate climate, little to no snow and have had the best success with 20W50.

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Southpa
1970 GMC 1500 Custom
Victoria, BC, Canada

72gmc1/2ton · 04-11-2002, 11:12 PM

I'm old school I run 30w val. I tried running syn. oils in acouple different cars and vans and trucks they seem to run at about 15-20 degrees hot then regualr oil.

69 longhorn · 04-12-2002, 03:47 AM

I run 20/50 Penzoil in the longhorn,& use an AC filter. (not driven during winter months)........69 longhorn.

Project1970 · 04-12-2002, 09:39 AM

My truck gets 20w50 Valvoline MaxLife these days.

I'd run 10w30, but it's Arizona and that thing has enough trouble keeping its oil in without adding hot 10w30 into the equation. =P

FWIW, the Camaro gets 20w50 Mobil1 synthetic - but that's because it's a rather common problem for LT1s to not build enough oil pressure with 10w30 synthetic. The Suburban has plenty of pressure with Mobil1 10w30 synth, though.

Whenever I put a new motor in it, I'll switch over to 10w30 synthetic...

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Project 1970 - soon to be seen at http://milhouse.treylis.org:81/

71-longbed · 05-15-2003, 01:13 PM

10w-40 ..... with an ac delco filter

XXL · 05-15-2003, 01:55 PM

In TX I used to run Castrol 20w50. Up here that stuff turns into the La Brea tar pit so I usually do 5w40 and 10w40.

Filter = PF35 (more filtration than the 25).

Kenneth

gr8scott51 · 05-15-2003, 02:23 PM

Castrol GTX 10w40 and a Wix filter.

1969 GMC · 05-15-2003, 04:03 PM

Napa!

Roberty · 05-15-2003, 04:10 PM

This question is almost as bad as asking who is the prettiest girl. Almost everyone will give 'ya a different answer.

Valvoline and Delco

Mike Culpepper · 05-15-2003, 04:19 PM

OIL? These things need oil?

Bill72BB · 05-15-2003, 07:25 PM

Another Castrol GTX 10w40 in the summer
10-30 in the winter

Jefe · 05-15-2003, 08:12 PM

20w 50 Valvoline year round. Only Valvoline products every touch any of my vehicles. Fram Oil Filters only.

71-longbed · 05-15-2003, 08:15 PM

any particular reason why most people use 20w-50 in there v8's .... just noticing a pattern here ....

HotRod929 · 05-15-2003, 08:21 PM

Yea why is almost everyone using 20W-50 oil? Im using 10W-40 year round in my truck and I live in Mass. Any benifits of 20W-50? Thanks

HotRod

**old Rusty C10** · 05-15-2003, 08:32 PM

on the chevy trucks i run 10w30 or 10w40 depends on how many miles on the truck and i swear byusing the delco filters on a GM vehicle motor craft on Ford etc etc
I generally use Quaker state oils

'72 Shorty · 05-15-2003, 09:34 PM

Valvoline synth 20-50. I like holding 50+psi on the oil pressure gauge all the time. Especially after an hour on the freeway and then pull into a gas station. 4500RPM tends to heat the oil up and I was running around 15-20PSI with 10-30.

Ususally Napa filters since nobody around has anything but that or Fram.

FRENCHBLUE72 · 05-15-2003, 10:42 PM

10w 30 valvoline or kindall when i can find it .......fram or wix filter's.

greasemonkey · 05-16-2003, 12:03 AM

I use 20/50, I use it because it's thicker and therefore seals better. When I switched to it, the truck stopped using so much oil (leaking and blowby). AC filters all the time.

firstgencamaros · 05-16-2003, 01:06 AM

I thought they filled the oil before it left the factory!

73stepside · 05-16-2003, 03:59 AM

castrol 10w30 and ac delco for the truck. castrol 5w30 and ac delco for the car.

04-11-2002, 03:29 PM	#1
Nichboy Registered User Join Date: Jun 2001 Location: Oklahoma City Oklahoma Posts: 173	Weight of oil What weight of oil do you guys run in your trucks in the summer time and who makes the best oil filter. __________________ 1971 Chevy SWB Oklahoma City, Oklahoma

04-11-2002, 03:33 PM	#2
NSANE68!!! SLICER AND DICIER Join Date: May 2001 Location: Quuen Creek Posts: 1,383	Castrol 20/50 weight, year round. __________________ 01 Tahoe 22's 2/4 drop and tv's 68 chevy money pit 51 chevy belair 95 Honda 900RR 05 GMC Siearra (company truck)

04-11-2002, 08:05 PM	#3
Mountain Man Registered User Join Date: Jan 2002 Location: Calgary, Alberta, Canada Posts: 451	Hands down - The best oil to run in summer and winter is Mobil 5W30 Synthetic. Nuf Said. __________________ 72 C10 Cheyenne Super Full trim Factory tach dash A/C dash Factory tilt 350 / 350 power train - with Edelbrock components.

04-11-2002, 10:45 PM	#5
Reumster L.E.D. Freak Join Date: Jan 2002 Location: Polson MT Posts: 1,358	Running a 5-30 synthetic is dyno proven to give you 5hp over 10-40 regular oil, and it lubricates better. Trust me. ------------------ 1972 2wd Blazer, 350/700R4/3:73 posi/NOS. Power is nothing without control! __________________ Specializing in Custom L.E.D. inserts. http://www.ccled.com/ Contact me @ blazer2wd1972@hotmail.com (406)675-8082 or Joel @ jmcwaters@eps-corp.net 1972 2wd Blazer, 350/700R4/3:73 posi, err & Custom L.E.D. inserts! LOL

04-11-2002, 11:05 PM	#6
Southpa Registered User Join Date: May 2000 Location: Victoria, BC, Canada Posts: 2,410	Depends on where you live, cold places need thinner oil. I live in a moderate climate, little to no snow and have had the best success with 20W50. ------------------ Southpa 1970 GMC 1500 Custom Victoria, BC, Canada __________________ 1970 GMC 1500 Custom Original 350/TH350 Victoria, BC, Canada You can wish in one hand and crap in the other. See which one gets filled first.

04-11-2002, 09:41 PM	#4
L&L BLUE 72 Guest Posts: n/a	WOLFS HEAD 20/50 YEAR ROUND AND WIX FILTERS ARE THE BEST! ------------------ 72BLUE C10 SWB 86BLUE K10 LWB 87RED S10 SWB 89RED S10 SWB

04-11-2002, 11:12 PM	#7
72gmc1/2ton Registered User Join Date: Feb 2002 Location: englewood co usa Posts: 94	I'm old school I run 30w val. I tried running syn. oils in acouple different cars and vans and trucks they seem to run at about 15-20 degrees hot then regualr oil.

04-12-2002, 03:47 AM	#8
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	I run 20/50 Penzoil in the longhorn,& use an AC filter. (not driven during winter months)........69 longhorn. __________________ http://community.webshots.com/user/hotrodhorn

04-12-2002, 09:39 AM	#9
Project1970 14.1 @ 96MPH Join Date: Jul 2001 Location: Mesa, AZ Posts: 2,811	My truck gets 20w50 Valvoline MaxLife these days. I'd run 10w30, but it's Arizona and that thing has enough trouble keeping its oil in without adding hot 10w30 into the equation. =P FWIW, the Camaro gets 20w50 Mobil1 synthetic - but that's because it's a rather common problem for LT1s to not build enough oil pressure with 10w30 synthetic. The Suburban has plenty of pressure with Mobil1 10w30 synth, though. Whenever I put a new motor in it, I'll switch over to 10w30 synthetic... ------------------ Project 1970 - soon to be seen at http://milhouse.treylis.org:81/ __________________ Project1970 - LS1 Swap Complete!

05-15-2003, 01:13 PM	#10
71-longbed Its Magically Delicious Join Date: Jan 2003 Location: oregon Posts: 2,398	10w-40 ..... with an ac delco filter __________________ 71 C10 LWB 350sbc -TH350 12 bolt 3.42 Posi Of all my favorite things to do, The utmost is to have a brew. My love grows for my foamy friend, with each thirst-quenching elbow bend. Beer so frosty, smooth, and cold it's paradise pure liquid gold. Yes beer means many things to me that's all for now cus I gotta pee.

05-15-2003, 01:55 PM	#11
XXL Señor Member Join Date: May 2002 Location: Edge of the world Posts: 5,367	In TX I used to run Castrol 20w50. Up here that stuff turns into the La Brea tar pit so I usually do 5w40 and 10w40. Filter = PF35 (more filtration than the 25). Kenneth __________________ Craigslist \| ebay \| Engrishtees \| www.myattitudesucks.com \| Follow me on Twitter

05-15-2003, 02:23 PM	#12
gr8scott51 Registered User Join Date: Mar 2003 Location: Bremerton, WA Posts: 1,839	Castrol GTX 10w40 and a Wix filter. __________________ Silence is golden, duct tape is silver. - Scott

05-15-2003, 04:03 PM	#13
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	Napa! __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

05-15-2003, 04:10 PM	#14
Roberty Hot Damn - Here I Am!! Join Date: Feb 2000 Location: Ringgold, Georgia Posts: 726	This question is almost as bad as asking who is the prettiest girl. Almost everyone will give 'ya a different answer. Valvoline and Delco __________________ My vehicles: '90 Silverado Sport '71 Chevelle SS Convertible '70 C-10 - My Grandfather bought it new - original un-restored

05-15-2003, 04:19 PM	#15
Mike Culpepper Red Join Date: Feb 2003 Location: Llano... Texas Hill Country Posts: 448	OIL? These things need oil? __________________ '72 Cheyenne LWB 350/350 "The sun don't shine on the same dog's ass all the time." - Catfish Hunter (commenting on why he was not able to pitch another perfect game).



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05-15-2003, 07:25 PM	#16
Bill72BB Thats the Hillbilly way Join Date: Jul 2001 Location: Torrance,Ca Posts: 5,980	Another Castrol GTX 10w40 in the summer 10-30 in the winter __________________ BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen ,

05-15-2003, 08:12 PM	#17
Jefe Registered User Join Date: Jul 2000 Location: Chandler, Arizona, USA Posts: 299	20w 50 Valvoline year round. Only Valvoline products every touch any of my vehicles. Fram Oil Filters only. __________________ -1968 Chevy SWB = Frame Off/383/Muncie Car 4 speed -1968 Chevy SWB = numbers matching 307/Truck 4 speed. -1966 Chevy II = 2 door No Post/130,000 Orig miles/230 6cyl/powerglide/Vintage AC -1972 Chevy Nova = 2 door/412 Small Block -1927 Ford Roadster = Homebuilt/widened 8"/350/ Custom Everything.

05-15-2003, 08:15 PM	#18
71-longbed Its Magically Delicious Join Date: Jan 2003 Location: oregon Posts: 2,398	any particular reason why most people use 20w-50 in there v8's .... just noticing a pattern here .... __________________ 71 C10 LWB 350sbc -TH350 12 bolt 3.42 Posi Of all my favorite things to do, The utmost is to have a brew. My love grows for my foamy friend, with each thirst-quenching elbow bend. Beer so frosty, smooth, and cold it's paradise pure liquid gold. Yes beer means many things to me that's all for now cus I gotta pee.

05-15-2003, 08:21 PM	#19
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	Yea why is almost everyone using 20W-50 oil? Im using 10W-40 year round in my truck and I live in Mass. Any benifits of 20W-50? Thanks HotRod __________________ 1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/

05-15-2003, 08:32 PM	#20
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,303	on the chevy trucks i run 10w30 or 10w40 depends on how many miles on the truck and i swear byusing the delco filters on a GM vehicle motor craft on Ford etc etc I generally use Quaker state oils __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

05-15-2003, 09:34 PM	#21
'72 Shorty I finally got an avatar Join Date: Jan 2003 Location: Cheney, WA Posts: 180	Valvoline synth 20-50. I like holding 50+psi on the oil pressure gauge all the time. Especially after an hour on the freeway and then pull into a gas station. 4500RPM tends to heat the oil up and I was running around 15-20PSI with 10-30. Ususally Napa filters since nobody around has anything but that or Fram. __________________ -72 C-10 short step (straight line only) 12.922/102.28 -69 C-20 on Propane (DD) -69 C-10 -56 Mack B-753LS (tow rig) -94 Chev K2500 Short Ex-Cab -89 Isuzu Trooper...Kinda -03 Kawasaki KFX-400 -05 Suzuki DRZ-400S

05-15-2003, 10:42 PM	#22
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,608	10w 30 valvoline or kindall when i can find it .......fram or wix filter's. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

05-16-2003, 12:03 AM	#23
greasemonkey Registered User Join Date: Dec 2001 Location: Pace, FL Posts: 2,155	I use 20/50, I use it because it's thicker and therefore seals better. When I switched to it, the truck stopped using so much oil (leaking and blowby). AC filters all the time. __________________ 1942 Master Deluxe 1969 C/10 1985 Blazer CUCV 1987 Jimmy 2004 Tahoe 2005 Silverado 1500 2005 Silverado 3500

05-16-2003, 01:06 AM	#24
firstgencamaros Registered User Join Date: Sep 2002 Location: Gilbert, AZ Posts: 151	I thought they filled the oil before it left the factory! __________________ FGC

05-16-2003, 03:59 AM	#25
73stepside Registered User Join Date: Feb 2002 Location: Moore OK 73160 Posts: 974	castrol 10w30 and ac delco for the truck. castrol 5w30 and ac delco for the car. __________________ 04 GMC Sierra RCSS 70 CST LWB 04 HD Sportster 1200 Custom

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