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#1
01-05-2006, 02:01 AM
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weight of oil
my truck is due for an oil change 01 silverado 73k miles the oil cap on my 4.3 said that the engine takes 10w 30 I belive but my father said that 20w 50 is better I live in california so would that be true?????
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Simon R 2001 Silverado W/T 4.3 124,000 
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#2
01-05-2006, 07:53 AM
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Re: weight of oil
Read the cap... do what the cap says
__________________
   "When I step on the gas, I want people to think the world is coming to an end!" - Homer Simpson 2002 ECSB, Nelson Tune, LS1 electric fans, 145A alternator, K&N FIPK, 160º T-stat, TB coolant bypass, Corvette servo, 4 headlight mod, blue LED gauge cluster
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#3
01-05-2006, 08:07 AM
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Re: weight of oil
I put 10w40 in mine, i wouldnt see a need for 20w50 in california though, id go with 10w40 tops.
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#4
01-05-2006, 01:46 PM
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Re: weight of oil
Blender is right go with what the cap says. i use a synthetic 5w-30 in my 02 and now have over 65k never a lick of trouble and runs as well as the day i bought it.
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2002 Z71 ext. cab LT trim badgeless Rhino spray in liner Stock for now, other than free mods future plans (how far in the future depends on wallet) Toyo Open Country M/T's air intake (not sure which yet) exhaust system (seems that Magna flow is the ticket) Nelson tune 3 or 4 inch lift
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#5
01-05-2006, 11:40 PM
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Re: weight of oil
I can think of two reasons to put 20W-50 in your late model:
A. You live in Death Valley B. Your oil pump is weak At such low mileage the original 10W-30 recommendation should be plenty, but if your truck has had a hard life with little maintenance, your bearing and ring clearances could be opening up. If your oil pressure is dropping, try replacing one quart of oil at your next change with Lucas Oil Supplement. It works for me, but my trucks don't need it before 250,000 miles.
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#6
01-06-2006, 05:05 AM
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Re: Re: weight of oil
I run 5w-30 in mine. I have put almost 41,000 miles on my 04 and it runs great, doesnt burn a drop and have no complaints.
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2004 Silverado Half-Ton Crew 7-9" Cognito Lift (set at 8" right now) Betts 7" rear springs w/factory block 3" PA Body Lift Yukon 4.88's with Auburn LSD Xentec 6500k HID lows, Silverstar Ultra brights Wade in channel window vents Covermaster Top Flowmaster 40 series, dual outs Nelson 89/91 HOT TUNE 20" MB Gunner 6's, 37" Toyo Open Country MT's Eclipse AVN6600 w/sirius and IPOD controllers Code Alarm w/ Remote Start
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#7
01-06-2006, 07:10 PM
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Re: weight of oil
I had no Idea thanxs guys!!!! by the way what do you guys think about "part" synthetic oil??
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Simon R 2001 Silverado W/T 4.3 124,000
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#8
01-06-2006, 10:39 PM
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Re: weight of oil
waste of money
__________________
"When I step on the gas, I want people to think the world is coming to an end!" - Homer Simpson 2002 ECSB, Nelson Tune, LS1 electric fans, 145A alternator, K&N FIPK, 160º T-stat, TB coolant bypass, Corvette servo, 4 headlight mod, blue LED gauge cluster
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#9
01-07-2006, 01:08 AM
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Re: weight of oil
yea I thought so myself
__________________
Simon R 2001 Silverado W/T 4.3 124,000
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#11
01-25-2006, 09:54 PM
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Re: weight of oil
Always run the recommended weight of oil, especially on a newer truck. By running a heavier weight oil you put strain on your engine during start-up. 20w should not be used in vehicles used for normal driving. Racing is an example of when to use that heavy of a motor oil. Synthetic blend oils are actually good oil because they act as a synthetic by providing better protection at start-up, although they do not contain the additives that prevent breaking down of the oil. Most newer fords all recommend synthetic blend 5w20. The only downfall is the cost
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