Oil and filter every 5 k
fuel filter every 10k

on my gasser
oil and filter 3 times every 10k ----3k-6k--0k
fuel filter--20k
distributor cap, rotor-- 10k (dang chevy)

 

twice a year...i use it only as an everyday driver...put 20 000kms on it a year...i add a bit every couple months cause the turbo eats it

 

i change mine ever 4 months, sometimes longer if it is a low mileage 4 months

i'm pretty surprised how few people go by time elapsed rather than mileage.

 

the eye is a very poor insturment to measure the quality of oil. just cuz it's black doesn't mean it isn't working

 

Every 5,000 with Valvoline Premium Blue with Statopore filter.

Fuel filter every other oil change, also Fleetguard.

Currently have less than 11,000 miles on the truck.

 

Which is why I stated "I sent in a sample to be analysed over the last change. Just waiting on the results now and I'll let you know what type of particulate matter I'm seeing."

I want to see if black oil = particulate matter. It's been 6 days since I sent the sample in... How long does it normally take?

brandon.

 

I change mine at 6k when running dino rotella and at abot 10k when running synthetic rotella in the winter.

 

Rotella at 5k
Fuel filter at 10k
Nice and simple

For me its not realy the engine im worried about using higher mileage oil, its the turbo using the oil supply that is 5k old. I like to keep it happy at 150,000 rpms.

 

'98.5 24-Valve:

Delo 400 or Delvac 1300 15w-40 CI-4 PLUS and TSB 09-004-01 approved Purolator filter
on O.E.M. recommended OCI's.

 

I'm changing mine every 5000 right now using dinosaur oil, and I'm about to use Royal Purple and change every 10000.

 

I change mine at 20.000 I use Champian Allfleet T 15/40.Oil samples come back servicable each time. I send the samples to Cat in St. louis takes about 10 to 14 working days.I have 2 ph8a Luberfiner oil filters on the motor.

 

I change per CTD specs: 7500 miles unloaded, 3750 towing.

 

Ya I know it is apples to oranges but a buddy had his extended warranty denied on his cube van duramax because he didn't change the oil every THREE months, they said the miles only matter if they come first. Since it is a business vehicle it was serviced at a certified shop that keep accurate records. Now that sucks doen't it! I tend to change my oil by the book which is THREE MONTHS or 7500 miles on schedule B which if you drive the truck like everyone else applies...2 bits?

 

I havent changed mine for the last 15,000! I have changed the filter though. I have what you call a self purging engine- about 1 GALLON every fill up or 500+ miles. Rear seal is leaking bad.

 

i do the 2x per year deal like above members... my truck is coming up on 16 months old and just about to roll over 20,000km [+10% speedo/odo error from tires] my truck is a daily commuter