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Castrol Syntec Blend CH4 approved

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Wierd sound from engine@ 75mph

clutch selection

I was at Camping World last weekend and I noticed that

Castrol Syntec Blend 15w-40 (Truck & 4x4) had a CH4 approval.

Is anyone out there using this product in their Cummins?



I have used Castrol (non-synthetic) 20w-50 in my gas Toyota's for 20 years with great results.

I got 350,000 miles on my 1986 truck.

I now have 130,000 on my 1996 truck and another 100,000 on my wife's Corolla.



I was planning on using Delo since it is available at Costco for

$33. 00 for 6 gallons. That works out to be $1. 33/qt.

The Syntec Blend is around $2. 00/qt.



Im also planning on 5k change intervals.
 
I was also wondering if others were using Castrol Syntec when I noticed the CH-4 rating while looking a sale display at my local Napa. Don't know if it's nationwide but it was on sale for $1. 39/qt. The Napa brand CH4 15w-40 dino oil, which is rebadged Valvoline, was just 79¢/qt.



This is just out of my own curiosity, 30 years of Delo in my diesels with excellent results gives me no motive to change.
 
Syn Blend

I've been looking for a blend to use since I can't afford to dump the Amsoil after every trip to the track. Gonna check the price on the Cummins Blue 2000 today. I like the idea of syn since it's resistant to the heat we run. Gotta be better for keeping the turbos happy.
 
HVAC,

I think you are dead on when you talk about the heat issue with turbos and synthetics. For the average user this may be a moot point, but for some HP 1/4 mile and pulling trucks I think it is a worth while difference.





Castrol makes a decent oil in at $1. 33 a quart it it hard to beat. Valvoline PB 2000 is overpriced and not all that special IMHO. The best blend I have seen to date is Schaffeurs. I think it's around $2. 75 a quart and it around 20% synthetic (most are less than 10%) www.bobistheoilguy.com



Just thought I'd throw this out there.
 
Good point on the percentages used to obtain the "blend"... Pretty devious to sell a "blend" if there's only 5% of the stuff in there you REALLY want... I bought some Valvoline "blend" power steering lube - was wondering as I paid for it how much synthetic was REALLY in there...
 
Synthetic Blend

Cooker, glad you see my point. BTW, don't forget that I run two turbos, hence more concern for heat resistance.



Today I got a price on the full syn Cummins oil and it was approx 16 bucks per gallon. I'm going to look into the price on the Castrol blend locally. I am getting a lot of soot in my oil for some reason:rolleyes: :rolleyes:
 
HVAC,

IF you are in the market for the new syn Cummins Valvoline Premium Blue Extreme (I think that's what they call it), I have heard many guys are buying it at Napa for around $12/gallon
 
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