916TrailBoss Posted December 27, 2023 Share Posted December 27, 2023 My truck came with an owners manual and a quick start guide but neither discusses the oil change intervals, capacity or oil weight to use (aside from what's on the oil cap.) Am I missing a manual or are we suppose to just wing-it? Quote Link to comment Share on other sites More sharing options...
ember1205 Posted December 27, 2023 Share Posted December 27, 2023 There's a lot of jumping around in the manual to find it all. If you haven't already, find and download the electronic version of the manual as it makes chasing this sort of info down a bit easier. Oil need to be dexos1, full syn, and "appropriate viscosity" for the engine. SAE 0W-20 for the V8 engines and 5W-30 for the L4. V8's use 8 quarts, the L4 uses 6 quarts. The truck is intended to "tell you" when to change it based on monitoring different data points of the truck in operation. You'll need to change the oil annually no matter the distance you drive. Otherwise, you might get anywhere from around 3k or so to 8k or more depending on the exact operating conditions. Heavy towing around town, short distances, high outside temps - short mileage. Cruising across the country on flat highway in moderate temps at 65MPH might net more like 8k miles or so. You can still follow the 3k / 3 month thing if you want, but you likely won't need to do it that often because you'll be running full syn. 3 Quote Link to comment Share on other sites More sharing options...
repairman54 Posted December 28, 2023 Share Posted December 28, 2023 Glove box manual is not complete. It only covers a few things on operation. Full one is available online at MyChevrolet.com. Ran into this on my '23. 1 Quote Link to comment Share on other sites More sharing options...
64BAwagon Posted December 28, 2023 Share Posted December 28, 2023 Watch for Dexos 1 Gen 3. Theres some older Gen 2 still out there. I still have some left from a previous buy, its fine for use in the gas truck engines. Quote Link to comment Share on other sites More sharing options...
newdude Posted December 28, 2023 Share Posted December 28, 2023 18 hours ago, 916TrailBoss said: My truck came with an owners manual and a quick start guide but neither discusses the oil change intervals, capacity or oil weight to use (aside from what's on the oil cap.) Am I missing a manual or are we suppose to just wing-it? 24_CHEV_Silverado_1500_OM_en_US_U_85516379B_2023SEP25_2P.pdf (chevrolet.com) Start on page 429 for specs and filters, go to page 347 shows oil weights. Quote Link to comment Share on other sites More sharing options...
ember1205 Posted December 28, 2023 Share Posted December 28, 2023 34 minutes ago, 64BAwagon said: Watch for Dexos 1 Gen 3. Theres some older Gen 2 still out there. I still have some left from a previous buy, its fine for use in the gas truck engines. Gen2 has been "sunsetted" by GM and they have moved to Gen3. I don't know that there's any ACTUAL difference in the spec, but there's almost certainly no MEANINGFUL difference in the spec. I have Gen2 stuff that will be going into the Camaro in the spring and I have ZERO reservations about using it there or in the truck until it runs out. Quote Link to comment Share on other sites More sharing options...
64BAwagon Posted December 28, 2023 Share Posted December 28, 2023 Right, If I recall correctly the Gen 3 was changed to address the LSPI and turbo protection so my 6.6 gasser will still get the Gen 2 until its all gone. 1 Quote Link to comment Share on other sites More sharing options...
Grumpy Bear Posted December 28, 2023 Share Posted December 28, 2023 Gen2 Verses Gen3 I love this chart. It makes me laugh. Minimums on deposits and sludge? How about boutique zero! Half a percent in NOAK. Any decent boutique is half that. Wear is TBD????? Standard aside the 'in practice' results in Ash reduction are a staggering 0.08% reduction. Really? Biggest news for this standard is LSPI which means lower Ca and more Mg and overall lower TBN. api-engine-oil-classifications-brochure2.pdf (infineum.com) Quote Link to comment Share on other sites More sharing options...
ember1205 Posted December 28, 2023 Share Posted December 28, 2023 10 minutes ago, Grumpy Bear said: Gen2 Verses Gen3 I love this chart. It makes me laugh. Minimums on deposits and sludge? How about boutique zero! Half a percent in NOAK. Any decent boutique is half that. Wear is TBD????? Standard aside the 'in practice' results in Ash reduction are a staggering 0.08% reduction. Really? Biggest news for this standard is LSPI which means lower Ca and more Mg and overall lower TBN. api-engine-oil-classifications-brochure2.pdf (infineum.com) To be blunt, dexos certifications are marketing bullshit. They are a revenue generator for GM and nothing more. 3 Quote Link to comment Share on other sites More sharing options...
Z45 Posted December 29, 2023 Share Posted December 29, 2023 Quote To be blunt, dexos certifications are marketing bullshit. They are a revenue generator for GM and nothing more. The engineers give the formulas to corporate operations (aka bean counters) and the formula is put out for private label bidding. Guess who always wins that bid. The LOWEST bidder. Then guess what the lowest bidder does…they try to maximize their profit by staying on the bottom end of the specs. It’s no different than any other private label product in any other industry. The oem companies have a profit center in their service departments and getting their equipment back in for service is just part of their plan. That’s just the way it works. Quote Link to comment Share on other sites More sharing options...
ember1205 Posted December 29, 2023 Share Posted December 29, 2023 10 minutes ago, elcamino said: The engineers give the formulas to corporate operations (aka bean counters) and the formula is put out for private label bidding. Guess who always wins that bid. The LOWEST bidder. Then guess what the lowest bidder does…they try to maximize their profit by staying on the bottom end of the specs. It’s no different than any other private label product in any other industry. The oem companies have a profit center in their service departments and getting their equipment back in for service is just part of their plan. That’s just the way it works. Huh? What does "lowest bidder" have to do with this? GM creates a BS spec then requires oil companies to pay to have their oil "certified" as meeting that spec so the oil company is allowed to add the label to their product. This generates revenue for GM -AND- it protects them financially by providing an "out" for engine failures (if they can prove you didn't run a certified oil). GM purposefully designed the program so that the certifications are only good for a certain amount of time before they "expire." Leading up to that time, they change the spec in no meaningful way then require the oil companies to pay again to carry the "new" badge. It's all a bunch of crap meant to confuse the consumer, generate revenue for GM, and force the oil companies to keep opening their wallet lest they find their oil products undesirable by the consumer in the aftermarket. Because GM is in bed with Mobil1, you will ALWAYS see their oil products achieve a certification first in any of the categories that GM dreams up. Quote Link to comment Share on other sites More sharing options...
Grumpy Bear Posted December 29, 2023 Share Posted December 29, 2023 41 minutes ago, ember1205 said: Huh? What does "lowest bidder" have to do with this? GM creates a BS spec then requires oil companies to pay to have their oil "certified" as meeting that spec so the oil company is allowed to add the label to their product. This generates revenue for GM -AND- it protects them financially by providing an "out" for engine failures (if they can prove you didn't run a certified oil). GM purposefully designed the program so that the certifications are only good for a certain amount of time before they "expire." Leading up to that time, they change the spec in no meaningful way then require the oil companies to pay again to carry the "new" badge. It's all a bunch of crap meant to confuse the consumer, generate revenue for GM, and force the oil companies to keep opening their wallet lest they find their oil products undesirable by the consumer in the aftermarket. Because GM is in bed with Mobil1, you will ALWAYS see their oil products achieve a certification first in any of the categories that GM dreams up. Close. Even if you use a non-Dexos oil they still have to prove that oil lead directly to the failure. Quote Link to comment Share on other sites More sharing options...
ember1205 Posted December 29, 2023 Share Posted December 29, 2023 10 minutes ago, Grumpy Bear said: Close. Even if you use a non-Dexos oil they still have to prove that oil lead directly to the failure. Maybe, maybe not. It depends on whether you have science on your side (meaning that you can show that the oil that you DID use met the specs or exceeded them) and how deep your pockets are. Once they deny a warranty claim, you basically have to sue them in court. Quote Link to comment Share on other sites More sharing options...
Grumpy Bear Posted December 29, 2023 Share Posted December 29, 2023 2 hours ago, ember1205 said: Maybe, maybe not. It depends on whether you have science on your side (meaning that you can show that the oil that you DID use met the specs or exceeded them) and how deep your pockets are. Once they deny a warranty claim, you basically have to sue them in court. Magnuson-Moss Warranty Act The burden of proof is entirely on them. You don't have to show squat. More times than not a letter from you lawyer will get them off their suborn stance. Lawyer won't take the case if he can't win it and they will pay your fee when they lose. But yes, have your ducks in a row. Meets or exceeds will be a sticking point if you decide to try this with some bottom shelf swill. You will get no sympathy from them, the law or anyone else if you 'cheap' and "cheat". About once a month this Magnuson-Moss pot boils over. It is getting old enough that this is the last time I reply to it. You have a nice day. Quote Link to comment Share on other sites More sharing options...
ember1205 Posted December 29, 2023 Share Posted December 29, 2023 18 minutes ago, Grumpy Bear said: Magnuson-Moss Warranty Act The burden of proof is entirely on them. You don't have to show squat. More times than not a letter from you lawyer will get them off their suborn stance. Lawyer won't take the case if he can't win it and they will pay your fee when they lose. But yes, have your ducks in a row. Meets or exceeds will be a sticking point if you decide to try this with some bottom shelf swill. You will get no sympathy from them, the law or anyone else if you 'cheap' and "cheat". About once a month this Magnuson-Moss pot boils over. It is getting old enough that this is the last time I reply to it. You have a nice day. I'm fully aware. But GM also knows full well that they will "win by default" in most cases simply by starting out by denying the claim. The consumer walks away from it more often than not at that point. Quote Link to comment Share on other sites More sharing options...
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