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  #1  
Old April 27th, 2011, 03:20 PM
rr1
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john
1997 D-90
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Oil & Start-up Noise

I've got a '97 w/52k miles on it. It's not my daily driver, but I try to start it every weekend to keep everything running.

She always starts up, but when she does there's some tapping/knocking that comes from the engine for about 20 seconds and then it completely goes away. I'm no mechanic, but it sounds like the oil is taking time to circulate before it gets quiet... It doesn't happen unless she sits for about a week. A rover shop looked the engine over and says it's fine.

Can you guys please recommend an oil that might help reduce this (I use Castrol GTX 10w40 now)? Am I slowly killing my baby?

Thanks in advance.
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  #2  
Old April 27th, 2011, 03:31 PM
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evilfij
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Normal. Nothing wrong with 10w40 in cali. New lifters would fix it or just drive it everyday.
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  #3  
Old April 27th, 2011, 04:03 PM
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Tony Lawson
1986 D110 ex-200tdi to be 6BT
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yup, very normal. Hydraulic lifters 'pump up' with engine oil pressure. The ones under load when the motor stops leak down over time. Older ones leak down faster. Takes a few seconds to pump them up. A good run once warmed up will help free things up some, but the way you're using it, it's going to do that. 20 seconds isn't bad - I've had motors that can take many minutes.
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  #4  
Old April 27th, 2011, 04:49 PM
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Brian
Beluga '97 90
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Mine may take longer than 20 seconds when I let it sit and I've only got 44K miles. I'm being more diligent about starting the truck up more often now. Try Mobil 1 0W-40.
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  #5  
Old April 27th, 2011, 08:14 PM
rr1
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john
1997 D-90
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Thanks for the replies. I feel better now. I'll just turn the radio up louder so I don't hear it on start-up.
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  #6  
Old April 28th, 2011, 07:48 AM
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Phillip
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What oil filter. Amsoil 10w40.
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  #7  
Old August 18th, 2011, 09:58 AM
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1of40
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I'm experiencing the same with my lifters and I've generally not used synthetics. She's at 100k and I use her everyday. Would switching to a synthetic extend the life you think? I don't mind the noise I just want to try and extend the life of the orignial engine.
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  #8  
Old August 18th, 2011, 10:18 AM
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kevin
1994 D90 300tdi #730, SIII 88
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When you boil it all down, the advantage of syn oils are their consistency and ability to resist breaking down. So syn oil will give you better cold weather lubrication, little or no sludge buildup, and longer periods between changes. It's not a magic bullit, just a better product that may or may not be advantageous to you depending on your driving and service habits.
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  #9  
Old August 18th, 2011, 11:24 AM
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Phillip
1995 SW #487/500
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Beating this horse into the ground. I've been hang Amsoil 10w40 for about a year in my defender. It has a high zinc content and I like 10w40. I used to use mobil 10w40 and would get lifter noise at startup if it had been sitting for days. Since I started using amsoil my oil light goes out immediately with no lifter noise. I am stock and at 80k(gasp) on my defender. I have a classic with crower lifters I've ran many different brands oof oil mobil amsoil rotella. Lately its been 20w50 valvoline vr1, it sits a lot weeks at a time it never makes valve train noise at startup. Wrt filters I've generally used a napa 1452 or k&n.

Id vote for amsoil high zinc and given these engines propensity to sludge synthetics make sense imo. I run amsoil in my honda at 5-7k intervals and it drains out looking as clean as my rovers oil with 2-3k. I could probably stretch it 10-15k but oil is cheap.
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  #10  
Old August 18th, 2011, 11:41 AM
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Thanks Guys. I think I have read before these engines require high zink. It's worth a try. Thanks again.
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