What oil do you use? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

screwballl · 08-02-2004, 08:07 PM

mobil1 10w30 in my 76 and in the wife's 95 Nissan Pathfinder with 180K miles. In hot weather 10w30 is usually best all around and for cold winters like above the mason dixie line 10w40 for late fall to early spring
I am in North FL so it is 10w30 year round but originall from SD so i know the cold/hot oil changes

Tom · 08-02-2004, 10:41 PM

cheapo NAPA 10w-30 oil and a NAPA gold filter [WIX brand] changed every 2500-3000miles.

1985K10 · 08-02-2004, 10:54 PM

Vavloline 10-30 with a Fram filter every 3K miles or so, WITH a bottle of Lucas. My truck would puff a little smoke off the line untill i started using Lucas. I tried 10-40 for the summer to keep better oil pressure with higher temps, but I have a ticking/tapping(sounds like a lifter) with the 10-40, so I'm sticking with 10-30.

C&C Chevy · 08-03-2004, 01:08 AM

I use 10w-30 Mobil regular oil and a Wix filter. Change it every 5-6k miles.

71-longbed · 11-25-2004, 03:26 AM

thought i'd dig this post up .. i just switch from valvoline 10w40 to chevron 10w30 ... i prefer the 10w30....

PRUNEDA · 11-25-2004, 04:03 AM

mobil1 10w30

badone07 · 11-25-2004, 04:36 AM

10w-30 mobil 1 in my Jeep (82k) and wife's Pathfinder (117k). Rebuilt 355 in pickup has had 2 oil changes starting with straight 30w for break in. Now has 10w-30 and put maybe 6-8 miles on it so far. Pickup's oil is left over quarts from other changes (mixed brands), that I had on the shelf. I change my oil frequent enough not to worry about what name brand I use. Same goes for my filters. It won't see synthetic for a few thousand miles, which could be in a couple of years.

79gmcc15 · 11-25-2004, 09:53 AM

I use wallyworld whatever brand 20 w 50. I dont see a use more expencive oil cause the truck with inching up to 190,000 mile and it leaks *I think* and I know it burns it cause of fouls up a couple plugs. but no blue smoke when I start it up. it goes through aprox 1 1/2 qt's every to weeks.

**N2TRUX** · 11-25-2004, 10:58 AM

Castrol 10-30

cochran63 · 11-25-2004, 11:45 AM

I like the castrol 10-30 in eveything I own except the 427 ans it gets Valvoline 50

cliffsta · 11-25-2004, 12:47 PM

i changed my oil for the second time since i had red on 11/7, and again i used Valvoline Maxlife 10w30. I use max life everything. If i woulda seen the maxlife antifreeze before i bought the havoline stuff, i would have it too.

grape · 11-25-2004, 03:41 PM

15/40 rotella in the diesels and mom's gas tahoe, and 5/40 synthetic rotella in the mustang, redline in the corvette.

86k10 · 11-28-2004, 01:30 PM

I agree with Bowed, use what your manufacturer says to use, newer engines run some very tight clearances on cylinder walls and bearings, so one is just kidding themselves to think a thicker oil is better. I use 5W30 year round in everything I have. A few years back, I had the opportunity to talk with the Valvoline oil rep at our John Deere dealer. He also said use what your manufacturer recommends since that particular engine is built for that viscosity oil. I was kind of stunned when he said that 10W40 oil should have never seen the light of day, I of course asked why and he simply said you cannot have that much of a spread in the viscosity figures and not have to modify the oil in a disastrous way to make it work. He said that was just a way for companies to be able to market 1 grade of oil that would work in place of a lot of single weights, and since discount stores wanted an oil they could sell cheap and they got it at the expense of a lot of engines.

cochran63 · 11-28-2004, 02:06 PM

Quote:

Originally Posted by Tom

cheapo NAPA 10w-30 oil and a NAPA gold filter [WIX brand] changed every 2500-3000miles.

One of my friends works at NAPA and he told me that the NAPA oil is Valvoline. It is just in a blue bottle and a lot cheaper.

cliffsta · 11-28-2004, 02:28 PM

Yeah i have to go with what the other guys are saying about 10w40. I heard from someone here in town that 10w40 is utter crap. Their exact words were something like "10w40 is s---., it tears up your motor." Now i know why that person said that...

8t5Silverado · 11-29-2004, 02:39 PM

Truck - Mobil 30W - to try and pass inspection and hopefully decrease blow-by

Subaru - Mobil 1 5W30

08-02-2004, 08:07 PM	#26
screwballl Tonawanda 454 Join Date: Mar 2004 Location: Liquid Sunshine State Posts: 2,755	mobil1 10w30 in my 76 and in the wife's 95 Nissan Pathfinder with 180K miles. In hot weather 10w30 is usually best all around and for cold winters like above the mason dixie line 10w40 for late fall to early spring I am in North FL so it is 10w30 year round but originall from SD so i know the cold/hot oil changes __________________ 91 Chevy Suburban Tonawanda 454 R2500 - SOLD!!! 04 Dodge Durango 5.7L Hemi 2WD, 24K miles (as of July 2011) In the past 30 years about 90% of Fords are still on the road, the other 10% made it home. -------------------

08-02-2004, 10:41 PM	#27
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,730	cheapo NAPA 10w-30 oil and a NAPA gold filter [WIX brand] changed every 2500-3000miles. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

08-02-2004, 10:54 PM	#28
1985K10 Registered User Join Date: Oct 2003 Location: CT Posts: 315	Vavloline 10-30 with a Fram filter every 3K miles or so, WITH a bottle of Lucas. My truck would puff a little smoke off the line untill i started using Lucas. I tried 10-40 for the summer to keep better oil pressure with higher temps, but I have a ticking/tapping(sounds like a lifter) with the 10-40, so I'm sticking with 10-30. __________________ Anthony 07 Tahoe LT 70 Chevelle 450HP 383-TH400 77 GMC Royal Sierra~Resto in progress~

08-03-2004, 01:08 AM	#29
C&C Chevy Registered User Join Date: Feb 2003 Location: Midwest City, OK Posts: 1,001	I use 10w-30 Mobil regular oil and a Wix filter. Change it every 5-6k miles. __________________ Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007

11-25-2004, 03:26 AM	#30
71-longbed Its Magically Delicious Join Date: Jan 2003 Location: oregon Posts: 2,398	thought i'd dig this post up .. i just switch from valvoline 10w40 to chevron 10w30 ... i prefer the 10w30.... __________________ 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.

11-25-2004, 04:03 AM	#31
PRUNEDA '87 Join Date: Jun 2004 Location: Katy, TX Posts: 632	mobil1 10w30

11-25-2004, 04:36 AM	#32
badone07 Project 2 Resume Join Date: May 2004 Location: Jim Thorpe, PA Posts: 884	10w-30 mobil 1 in my Jeep (82k) and wife's Pathfinder (117k). Rebuilt 355 in pickup has had 2 oil changes starting with straight 30w for break in. Now has 10w-30 and put maybe 6-8 miles on it so far. Pickup's oil is left over quarts from other changes (mixed brands), that I had on the shelf. I change my oil frequent enough not to worry about what name brand I use. Same goes for my filters. It won't see synthetic for a few thousand miles, which could be in a couple of years. __________________ John 1984 C30 Chevy Crew Cab Dually 1998 Jeep Cherokee 4x4 2004 Chevy Trailblazer 4x4 (wife's) 1970 Mustang FB fully tubed (getting 521 BBF & powerglide) 1978 Nova 2dr (going BBCaddy & S.P. th400) 1984 Monte SS (circle track car)

11-25-2004, 09:53 AM	#33
79gmcc15 Gettin It One Pice At A Time Join Date: Oct 2004 Location: everett, washington Posts: 2,688	I use wallyworld whatever brand 20 w 50. I dont see a use more expencive oil cause the truck with inching up to 190,000 mile and it leaks I think and I know it burns it cause of fouls up a couple plugs. but no blue smoke when I start it up. it goes through aprox 1 1/2 qt's every to weeks. __________________ RIP ELJAY Work In Progress 1979 GMC C1500 Trailering Special. Getting the truck done, one piece at a time. “You can tell a lot about a fellow’s character by his way of eating jellybeans.”Ronald Reagan “I don’t know the key to success but I know the key to failure is trying to please everybody.” Bill Cosby Last edited by 79gmcc15; 11-25-2004 at 11:31 AM.

11-25-2004, 10:58 AM	#34
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Castrol 10-30 __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

11-25-2004, 11:45 AM	#35
cochran63 Registered User Join Date: Jan 2004 Location: Oklahoma Posts: 1,057	I like the castrol 10-30 in eveything I own except the 427 ans it gets Valvoline 50 __________________ Youth soon passes away, but immaturity can last a life time.

11-25-2004, 12:47 PM	#36
cliffsta Stepsides RULE Join Date: Jul 2004 Location: Pineville, LA Posts: 1,921	i changed my oil for the second time since i had red on 11/7, and again i used Valvoline Maxlife 10w30. I use max life everything. If i woulda seen the maxlife antifreeze before i bought the havoline stuff, i would have it too. __________________ 1981 Chevy C10 Custom Deluxe Stepside 350 V8, headers, side exhausts, 3-speed auto SOLD 1980 Chevy C10 Custum Deluxe Stepside 305 V8, Edelbrock Performer Intake, Edelbrock 1406 600CFM 4-barrel, TH350C. Bent rod. SOLD 1984 GMC Sierra Classic Longbed 6.2L Diesel SOLD 2009 Kawasaki KLX-250S too many mods for this signature 1999 Honda Accord EX 4-cylinder, 17" Motegi Wheels 215/45/17 Sumitomo tires, Tein S-Tech lowering springs, KYB GR2 shocks, Acura TL 20mm rear swaybar, debadged, blackhoused headlights, Short-Ram Intake Cardomain of the Accord

11-25-2004, 03:41 PM	#37
grape Registered User Join Date: Dec 2003 Location: Ft. Worth, TX Posts: 86	15/40 rotella in the diesels and mom's gas tahoe, and 5/40 synthetic rotella in the mustang, redline in the corvette.

11-28-2004, 01:30 PM	#38
86k10 Registered User Join Date: Feb 2003 Location: Bertrand, Nebraska Posts: 355	I agree with Bowed, use what your manufacturer says to use, newer engines run some very tight clearances on cylinder walls and bearings, so one is just kidding themselves to think a thicker oil is better. I use 5W30 year round in everything I have. A few years back, I had the opportunity to talk with the Valvoline oil rep at our John Deere dealer. He also said use what your manufacturer recommends since that particular engine is built for that viscosity oil. I was kind of stunned when he said that 10W40 oil should have never seen the light of day, I of course asked why and he simply said you cannot have that much of a spread in the viscosity figures and not have to modify the oil in a disastrous way to make it work. He said that was just a way for companies to be able to market 1 grade of oil that would work in place of a lot of single weights, and since discount stores wanted an oil they could sell cheap and they got it at the expense of a lot of engines. __________________ 98 Neon 97 Grand Prix GT 02 Grand Prix 40th Anniv. 86 GMC 5.0 77 Olds 98 6.6 REAL AMERICANS, DRIVE AMERICAN

11-28-2004, 02:28 PM	#40
cliffsta Stepsides RULE Join Date: Jul 2004 Location: Pineville, LA Posts: 1,921	Yeah i have to go with what the other guys are saying about 10w40. I heard from someone here in town that 10w40 is utter crap. Their exact words were something like "10w40 is s---., it tears up your motor." Now i know why that person said that... __________________ 1981 Chevy C10 Custom Deluxe Stepside 350 V8, headers, side exhausts, 3-speed auto SOLD 1980 Chevy C10 Custum Deluxe Stepside 305 V8, Edelbrock Performer Intake, Edelbrock 1406 600CFM 4-barrel, TH350C. Bent rod. SOLD 1984 GMC Sierra Classic Longbed 6.2L Diesel SOLD 2009 Kawasaki KLX-250S too many mods for this signature 1999 Honda Accord EX 4-cylinder, 17" Motegi Wheels 215/45/17 Sumitomo tires, Tein S-Tech lowering springs, KYB GR2 shocks, Acura TL 20mm rear swaybar, debadged, blackhoused headlights, Short-Ram Intake Cardomain of the Accord

11-29-2004, 02:39 PM	#41
8t5Silverado Mudslides 'r my specialty Join Date: Dec 2003 Location: STL Posts: 1,106	Truck - Mobil 30W - to try and pass inspection and hopefully decrease blow-by Subaru - Mobil 1 5W30 __________________ Always on the lookout for old cars and parts...(20s, 30s, 40s, 50s, 60s, etc.) http://www.cardomain.com/memberpage/500339



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